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<pre class="metadata">
Title: Protected Audience (formerly FLEDGE)
Shortname: protected-audience
Repository: WICG/turtledove
Inline Github Issues: true
Group: WICG
Status: CG-DRAFT
Level: 1
URL: https://wicg.github.io/turtledove/
Boilerplate: omit conformance, omit feedback-header
Editor: Paul Jensen, Google https://www.google.com/, [email protected]
Abstract: Provides a privacy advancing API to facilitate interest group based advertising.
!Participate: <a href="https://github.com/WICG/turtledove">GitHub WICG/turtledove</a> (<a href="https://github.com/WICG/turtledove/issues/new">new issue</a>, <a href="https://github.com/WICG/turtledove/issues?state=open">open issues</a>)
!Commits: <a href="https://github.com/WICG/turtledove/commits/main/spec.bs">GitHub spec.bs commits</a>
Complain About: accidental-2119 yes, missing-example-ids yes
Indent: 2
Default Biblio Status: current
Markup Shorthands: markdown yes
Assume Explicit For: yes
</pre>
<pre class="anchors">
urlPrefix: https://www.ietf.org/rfc/rfc4122.txt
type: dfn; text: urn uuid
type: dfn; text: string representation
type: dfn; text: version 4 UUID
spec: RFC6234; urlPrefix: https://www.ietf.org/rfc/rfc6234.txt
type: dfn; text: SHA-256
spec: html; urlPrefix: https://html.spec.whatwg.org/C
type: dfn
text: create an agent; url: create-an-agent
text: immediately; url: immediately
text: valid floating-point number; url: valid-floating-point-number
spec: infra; urlPrefix: https://infra.spec.whatwg.org/
type: dfn
text: convert an Infra value to a JSON-compatible JavaScript value; url: #convert-an-infra-value-to-a-json-compatible-javascript-value
spec: RFC8941; urlPrefix: https://httpwg.org/specs/rfc8941.html
type: dfn
text: structured header; url: top
for: structured header
text: integer; url: integer
spec: WebAssembly; urlPrefix: https://webassembly.github.io/spec/core/
type: dfn
urlPrefix: appendix/embedding.html
text: error; url: embed-error
spec: WebAssembly-js-api; urlPrefix: https://webassembly.github.io/spec/js-api/
type: dfn
text: compiling a WebAssembly module; url: #compile-a-webassembly-module
spec: WebIDL; urlPrefix: https://webidl.spec.whatwg.org/
type: dfn
text: convert a Web IDL arguments list to an ECMAScript arguments list; url: #web-idl-arguments-list-converting
spec: Fenced Frame; urlPrefix: https://wicg.github.io/fenced-frame/
type: dfn
for: browsing context
text: fenced frame config instance; url: #browsing-context-fenced-frame-config-instance
spec: Private Aggregation API; urlPrefix: https://patcg-individual-drafts.github.io/private-aggregation-api
type: dfn
text: private-aggregation; url: #private-aggregation
spec: Shared Storage API; urlPrefix: https://wicg.github.io/shared-storage
type: dfn
text: shared-storage; url: #permissionspolicy-shared-storage
text: shared-storage-select-url; url: #permissionspolicy-shared-storage-select-url
</pre>
<style>
/* domintro from https://resources.whatwg.org/standard.css */
.domintro {
position: relative;
color: green;
background: #DDFFDD;
margin: 2.5em 0 2em 0;
padding: 1.5em 1em 0.5em 2em;
}
.domintro dt, .domintro dt * {
color: black;
font-size: inherit;
}
.domintro dd {
margin: 0.5em 0 1em 2em; padding: 0;
}
.domintro dd p {
margin: 0.5em 0;
}
.domintro::before {
content: 'For web developers (non-normative)';
background: green;
color: white;
padding: 0.15em 0.25em;
font-style: normal;
position: absolute;
top: -0.8em;
left: -0.8em;
}
</style>
# Introduction # {#intro}
<em>This section is non-normative</em>
The Protected Audience API facilitates selecting an advertisement to display to a user based on a
previous interaction with the advertiser or advertising network.
When a user's interactions with an advertiser indicate an interest in something, the advertiser can
ask the browser to record this interest on-device by calling
{{Window/navigator}}.{{Navigator/joinAdInterestGroup()}}. Later, when a website wants to select an
advertisement to show to the user, the website can call
{{Window/navigator}}.{{Navigator/runAdAuction()}} to ask the browser to conduct an auction where
each of these on-device recorded interests are given the chance to calculate a bid to display their
advertisement.
<h2 id="joining-interest-groups">Joining Interest Groups</h2>
When a user's interactions with a website indicate that the user may have a particular interest, an
advertiser or someone working on behalf of the advertiser (e.g. a demand side platform, DSP) can ask
the user's browser to record this interest on-device by calling
{{Window/navigator}}.{{Navigator/joinAdInterestGroup()}}. This indicates an intent to display an
advertisement relevant to this interest to this user in the future. The user agent has an
<dfn>interest group set</dfn>, a [=list=] of [=interest groups=] in which
[=interest group/owner=] / [=interest group/name=] pairs are unique.
<xmp class="idl">
[SecureContext]
partial interface Navigator {
Promise<undefined> joinAdInterestGroup(AuctionAdInterestGroup group);
};
dictionary AuctionAd {
required USVString renderURL;
any metadata;
USVString buyerReportingId;
USVString buyerAndSellerReportingId;
};
dictionary GenerateBidInterestGroup {
required USVString owner;
required USVString name;
required double lifetimeMs;
boolean enableBiddingSignalsPrioritization = false;
record<DOMString, double> priorityVector;
DOMString executionMode = "compatibility";
USVString biddingLogicURL;
USVString biddingWasmHelperURL;
USVString updateURL;
USVString trustedBiddingSignalsURL;
sequence<USVString> trustedBiddingSignalsKeys;
any userBiddingSignals;
sequence<AuctionAd> ads;
sequence<AuctionAd> adComponents;
};
dictionary AuctionAdInterestGroup : GenerateBidInterestGroup {
double priority = 0.0;
record<DOMString, double> prioritySignalsOverrides;
DOMString? additionalBidKey;
};
</xmp>
TODO: Maybe add a note about additionalBidKey cannot co-exist with ads.
{{AuctionAdInterestGroup}} is used by {{Window/navigator}}.{{Navigator/joinAdInterestGroup()}}, and
when an interest group is stored to [=interest group set=].
`priority` and `prioritySignalsOverrides` are not passed to `generateBid()` because they can be
modified by `generatedBid()` calls, so could theoretically be used to create a cross-site profile of
a user accessible to `generateBid()` methods, otherwise.
<div algorithm="joinAdInterestGroup()">
The <dfn for=Navigator method>joinAdInterestGroup(|group|)</dfn> method steps are:
<div class="note">
Temporarily, Chromium does not include the <a for="dictionary member"><span class="allow-2119">required</span></a> keyword
for {{GenerateBidInterestGroup/lifetimeMs}}, and instead starts this algorithm with the step
1. If |group|["{{GenerateBidInterestGroup/lifetimeMs}}"] does not [=map/exist=], throw a {{TypeError}}.
This is detectable because it can change the set of fields that are read from the argument when a
{{TypeError}} is eventually thrown, but it will never change whether the call succeeds or fails.
</div>
1. If [=this=]'s [=relevant global object=]'s [=associated Document=] is not [=allowed to use=] the
"[=join-ad-interest-group=]" [=policy-controlled feature=], then [=exception/throw=] a
"{{NotAllowedError}}" {{DOMException}}.
1. Let |frameOrigin| be [=this=]'s [=relevant settings object=]'s [=environment settings object/origin=].
1. [=Assert=] that |frameOrigin| is not an [=opaque origin=] and its [=origin/scheme=] is "`https`".
1. Let |interestGroup| be a new [=interest group=].
1. Validate the given |group| and set |interestGroup|'s fields accordingly.
1. Set |interestGroup|'s [=interest group/expiry=] to the [=current wall time=] plus
|group|["{{GenerateBidInterestGroup/lifetimeMs}}"] milliseconds.
1. Set |interestGroup|'s [=interest group/next update after=] to the [=current wall time=] plus 24
hours.
1. Set |interestGroup|'s [=interest group/owner=] to the result of [=parsing an origin=] on
|group|["{{GenerateBidInterestGroup/owner}}"].
1. If |interestGroup|'s [=interest group/owner=] is failure, or its [=url/scheme=] is not
"`https`", [=exception/throw=] a {{TypeError}}.
1. Optionally, [=exception/throw=] a "{{NotAllowedError}}" {{DOMException}}.
Note: This [=implementation-defined=] condition is intended to allow user
agents to decline for a number of reasons, for example the [=interest group/owner=]'s [=site=]
not being <a href="https://github.com/privacysandbox/attestation">enrolled</a>.
1. Set |interestGroup|'s [=interest group/name=] to |group|["{{GenerateBidInterestGroup/name}}"].
1. Set |interestGroup|'s [=interest group/priority=] to
|group|["{{AuctionAdInterestGroup/priority}}"].
1. Set |interestGroup|'s [=interest group/enable bidding signals prioritization=] to
|group|["{{GenerateBidInterestGroup/enableBiddingSignalsPrioritization}}"].
1. If |group|["{{GenerateBidInterestGroup/priorityVector}}"] [=map/exists=], then set
|interestGroup|'s [=interest group/priority vector=] to
|group|["{{GenerateBidInterestGroup/priorityVector}}"].
1. If |group|["{{AuctionAdInterestGroup/prioritySignalsOverrides}}"] [=map/exists=], then set
|interestGroup|'s [=interest group/priority signals overrides=] to
|group|["{{AuctionAdInterestGroup/prioritySignalsOverrides}}"].
1. Set |interestGroup|'s [=interest group/execution mode=] to
|group|["{{GenerateBidInterestGroup/executionMode}}"].
1. For each |groupMember| and |interestGroupField| in the following table
<table class="data">
<thead><tr><th>Group member</th><th>Interest group field</th></tr></thead>
<tr>
<td>"{{GenerateBidInterestGroup/biddingLogicURL}}"</td>
<td>[=interest group/bidding url=]</td>
</tr>
<tr>
<td>"{{GenerateBidInterestGroup/biddingWasmHelperURL}}"</td>
<td>[=interest group/bidding wasm helper url=]</td>
</tr>
<tr>
<td>"{{GenerateBidInterestGroup/updateURL}}"</td>
<td>[=interest group/update url=]</td>
</tr>
<tr>
<td>"{{GenerateBidInterestGroup/trustedBiddingSignalsURL}}"</td>
<td>[=interest group/trusted bidding signals url=]</td>
</tr>
</table>
1. If |group| [=map/contains=] |groupMember|:
1. Let |parsedUrl| be the result of running the [=URL parser=] on |group|[|groupMember|].
1. [=exception/Throw=] a {{TypeError}} if any of the following conditions hold:
* |parsedUrl| is failure;
* |parsedUrl| is not [=same origin=] with |interestGroup|'s [=interest group/owner=];
* |parsedUrl| [=includes credentials=];
* |parsedUrl| [=url/fragment=] is not null.
1. Set |interestGroup|'s |interestGroupField| to |parsedUrl|.
1. If |interestGroup|'s [=interest group/trusted bidding signals url=]'s [=url/query=] is not
null, then [=exception/throw=] a {{TypeError}}.
1. If |group|["{{GenerateBidInterestGroup/trustedBiddingSignalsKeys}}"] [=map/exists=], then set
|interestGroup|'s [=interest group/trusted bidding signals keys=] to
|group|["{{GenerateBidInterestGroup/trustedBiddingSignalsKeys}}"].
1. If |group|["{{GenerateBidInterestGroup/userBiddingSignals}}"] [=map/exists=]:
1. Set |interestGroup|'s [=interest group/user bidding signals=] to the result of
[=serializing a JavaScript value to a JSON string=], given
|group|["{{GenerateBidInterestGroup/userBiddingSignals}}"]. This can [=exception/throw=] a
{{TypeError}}.
1. For each |groupMember| and |interestGroupField| in the following table
<table class="data">
<thead><tr><th>Group member</th><th>Interest group field</th></tr></thead>
<tr>
<td>"{{GenerateBidInterestGroup/ads}}"</td>
<td>[=interest group/ads=]</td>
</tr>
<tr>
<td>"{{GenerateBidInterestGroup/adComponents}}"</td>
<td>[=interest group/ad components=]</td>
</tr>
</table>
1. If |group| [=map/contains=] |groupMember|, [=list/for each=] |ad| of |group|[|groupMember|]:
1. Let |igAd| be a new [=interest group ad=].
1. Let |renderURL| be the result of running the [=URL parser=] on
|ad|["{{AuctionAd/renderURL}}"].
1. [=exception/Throw=] a {{TypeError}} if any of the following conditions hold:
* |renderURL| is failure;
* |renderURL| [=url/scheme=] is not "`https`";
* |renderURL| [=includes credentials=].
1. Set |igAd|'s [=interest group ad/render url=] to |renderURL|.
1. If |ad|["{{AuctionAd/metadata}}"] [=map/exists=], then let
|igAd|'s [=interest group ad/metadata=] be the result of
[=serializing a JavaScript value to a JSON string=], given |ad|["{{AuctionAd/metadata}}"].
This can [=exception/throw=] a {{TypeError}}.
1. If |groupMember| is "{{GenerateBidInterestGroup/ads}}":
1. If |ad|["{{AuctionAd/buyerReportingId}}"] [=map/exists=], then set
|igAd|'s [=interest group ad/buyer reporting ID=] to it.
1. If |ad|["{{AuctionAd/buyerAndSellerReportingId}}"] [=map/exists=],
then set |igAd|'s [=interest group ad/buyer and seller reporting ID=] to it.
1. [=list/Append=] |igAd| to |interestGroup|'s |interestGroupField|.
1. If |group|["{{AuctionAdInterestGroup/additionalBidKey}}"] [=map/exists=]:
1. If |group|["{{GenerateBidInterestGroup/ads}}"] [=map/exists=], then [=exception/throw=] a
{{TypeError}}.
1. If |group|["{{AuctionAdInterestGroup/additionalBidKey}}"]
1. Set |interestGroup|'s [=interest group/additional bid key=] to
1. If |interestGroup|'s [=interest group/estimated size=] is greater than 50 KB, then
[=exception/throw=] a {{TypeError}}.
1. Let |p| be [=a new promise=].
1. Let |queue| be the result of [=starting a new parallel queue=].
1. [=parallel queue/enqueue steps|Enqueue the following steps=] to |queue|:
1. Let |permission| be the result of [=checking interest group permissions=] with
|interestGroup|'s [=interest group/owner=], |frameOrigin|, and "`join`".
1. If |permission| is false, then [=queue a task=] to [=reject=] |p| with a
"{{NotAllowedError}}" {{DOMException}} and do not run the remaining steps.
1. [=Queue a task=] to [=resolve=] |p| with `undefined`.
1. If the browser is currently storing an interest group with `owner` and `name` that matches
|interestGroup|, then set the [=interest group/bid counts=],
[=interest group/join counts=], and [=interest group/previous wins=] of
|interestGroup| to the values of the currently stored one and remove
the currently stored one from the browser.
1. Set |interestGroup|'s [=interest group/joining origin=] to [=this=]'s
[=relevant settings object=]'s [=environment/top-level origin=].
1. Set |interestGroup|'s [=interest group/join time=] to the [=current wall time=].
1. If the most recent entry in |interestGroup|'s [=interest group/join counts=] corresponds to
the current day in UTC, increment its count. If not, [=list/insert=] a new [=tuple=]
the time set to the current UTC day and a count of 1.
1. Store |interestGroup| in the browser’s [=interest group set=].
1. Return |p|.
</div>
<div algorithm>
The <dfn for="interest group">estimated size</dfn> of an [=interest group=] |ig| is the sum of:
1. The [=string/length=] of the [=serialization of an origin|serialization=] of |ig|'s
[=interest group/owner=].
1. The [=string/length=] of |ig|'s [=interest group/name=].
1. 8 bytes, which is the size of |ig|'s [=interest group/priority=].
1. The [=string/length=] of |ig|'s [=interest group/execution mode=].
1. 2 bytes, which is the size of |ig|'s [=interest group/enable bidding signals prioritization=].
1. If |ig|'s [=interest group/priority vector=] is not null, [=map/for each=] |key| → |value| of
[=interest group/priority vector=]:
1. The [=string/length=] of |key|.
1. 8 bytes, which is the size of |value|.
1. If |ig|'s [=interest group/priority signals overrides=] is not null, [=map/for each=] |key| → |value| of
[=interest group/priority signals overrides=]:
1. The [=string/length=] of |key|.
1. 8 bytes, which is the size of |value|.
1. The size of [=interest group/execution mode=].
1. The [=string/length=] of the [=URL serializer|serialization=] of |ig|'s
[=interest group/bidding url=], if the field is not null.
1. The [=string/length=] of the [=URL serializer|serialization=] of |ig|'s
[=interest group/bidding wasm helper url=], if the field is not null.
1. The [=string/length=] of the [=URL serializer|serialization=] of |ig|'s
[=interest group/update url=], if the field is not null.
1. The [=string/length=] of the [=URL serializer|serialization=] of |ig|'s
[=interest group/trusted bidding signals url=], if the field is not null.
1. [=list/For each=] |key| of |ig|'s [=interest group/trusted bidding signals keys=]:
1. The [=string/length=] of |key|.
1. The [=string/length=] of |ig|'s [=interest group/user bidding signals=].
1. If |ig|'s [=interest group/ads=] is not null, [=list/for each=] |ad| of it:
1. The [=string/length=] of the [=URL serializer|serialization=] of |ad|'s
[=interest group ad/render url=].
1. The [=string/length=] of |ad|'s [=interest group ad/metadata=] if the field is not null.
1. The [=string/length=] of |ad|'s [=interest group ad/buyer reporting ID=] if the field is not null.
1. The [=string/length=] of |ad|'s [=interest group ad/buyer and seller reporting ID=] if the field is not null.
1. If |ig|'s [=interest group/ad components=] is not null, [=list/for each=] |ad| of it:
1. The [=string/length=] of the [=URL serializer|serialization=] of |ad|'s
[=interest group ad/render url=].
1. The [=string/length=] of |ad|'s [=interest group ad/metadata=] if the field is not null.
1. If |ig|'s [=interest group/additional bid key=] is not null:
1. 32 bytes.
</div>
<div algorithm>
To <dfn>check interest group permissions</dfn> given an [=origin=]
|ownerOrigin|, an [=origin=] |frameOrigin|, and an enum |joinOrLeave| which is "`join`" or "`leave`":
1. If |ownerOrigin| is [=same origin=] with |frameOrigin|, then return true.
1. Let |permissionsUrl| be the result of [=building an interest group permissions url=] with
|ownerOrigin| and |frameOrigin|.
1. Let |request| be a new [=request=] with the following properties:
: [=request/URL=]
:: |permissionsUrl|
: [=request/header list=]
:: «`Accept`: `application/json`»
: [=request/client=]
:: `null`
: [=request/origin=]
:: |frameOrigin|
: [=request/mode=]
:: "`cors`"
: [=request/referrer=]
:: "`no-referrer`"
: [=request/credentials mode=]
:: "`omit`"
: [=request/redirect mode=]
:: "`error`"
Issue: One of the side-effects of a `null` client for this subresource request is it neuters all
service worker interceptions, despite not having to set the service workers mode.
1. Let |resource| be null.
1. [=Fetch=] |request| with [=fetch/useParallelQueue=] set to true, and
[=fetch/processResponseConsumeBody=] set to the following steps given a [=response=] |response|
and null, failure, or a [=byte sequence=] |responseBody|:
1. If |responseBody| is null or failure, set |resource| to failure and return.
1. Let |headers| be |response|'s [=response/header list=].
1. Let |mimeType| be the result of [=header list/extracting a MIME type=] from |headers|.
1. If |mimeType| is failure or is not a [=JSON MIME Type=], set |resource| to failure and return.
1. Set |resource| to |responseBody|.
1. Wait for |resource| to be set.
1. If |resource| is failure, then return false.
1. Let |permissions| be the result of [=parsing JSON bytes to an Infra value=] with |resource|,
returning false on failure.
1. If |permissions| is not an [=ordered map=], then return false.
1. If |joinOrLeave| is "`join`" and |permissions|["`joinAdInterestGroup`"] [=map/exists=], then
return |permissions|["`joinAdInterestGroup`"].
1. If |joinOrLeave| is "`leave`" and |permissions|["`leaveAdInterestGroup`"] [=map/exists=], then
return |permissions|["`leaveAdInterestGroup`"].
1. Return false.
The browser may cache requests for |permissionsUrl| within a network partition.
In order to prevent leaking data, the browser must request |permissionsUrl|
regardless of whether the user is a member of the ad interest group. This
prevents a leak of the user's ad interest group membership to the server.
</div>
<div algorithm>
To <dfn>build an interest group permissions url</dfn> given a [=origin=] |ownerOrigin| and a [=origin=] |frameOrigin|:
1. Let |serializedFrameOrigin| be the result of [=serialization of an origin|serializing=] |frameOrigin|.
1. Return the string formed by [=string/concatenating=]
* The [=serialization of an origin|serialization=] of |ownerOrigin|,
* The string "`/.well-known/interest-group/permissions/?origin=`", and
* The result of [=string/UTF-8 percent-encoding=] |serializedFrameOrigin| using [=component percent-encode set=].
</div>
<h2 id="leaving-interest-groups">Leaving Interest Groups</h2>
{{Window/navigator}}.{{Navigator/leaveAdInterestGroup()}} removes a user from a particular interest
group.
<xmp class="idl">
[SecureContext]
partial interface Navigator {
Promise<undefined> leaveAdInterestGroup(optional AuctionAdInterestGroupKey group = {});
};
dictionary AuctionAdInterestGroupKey {
required USVString owner;
required USVString name;
};
</xmp>
<div algorithm>
The <dfn for=Navigator method>leaveAdInterestGroup(group)</dfn> method steps
are:
1. Let |frameOrigin| be [=this=]'s [=relevant settings object=]'s
[=environment settings object/origin=].
1. [=Assert=] that |frameOrigin| is not an [=opaque origin=] and its [=origin/scheme=] is "`https`".
1. Let |p| be [=a new promise=].
1. If |group| [=map/is empty=]:
1. Let |instance| be [=this=]'s [=relevant global object=]'s [=Window/browsing context=]'s
[=browsing context/fenced frame config instance=].
1. If |instance| is null, [=exception/throw=] a {{TypeError}}.
1. Let |interestGroup| be |instance|'s [=fenced frame config instance/interest group descriptor=].
1. Run these steps [=in parallel=]:
1. [=Queue a task=] to [=resolve=] |p| with `undefined`.
1. If |interestGroup| is not null:
1. Let |owner| be |interestGroup|'s [=interest group descriptor/owner=].
1. Let |name| be |interestGroup|'s [=interest group descriptor/name=].
1. If |owner| is [=same origin=] with |frameOrigin|:
1. [=list/Remove=] [=interest groups=] from the user agent's [=interest group set=] whose
[=interest group/owner=] is |owner| and [=interest group/name=] is |name|.
1. Otherwise:
1. If [=this=]'s [=relevant global object=]'s [=associated Document=] is not [=allowed to use=] the
"[=join-ad-interest-group=]" [=policy-controlled feature=], then [=exception/throw=] a
"{{NotAllowedError}}" {{DOMException}}.
Note: both joining and leaving interest groups use the "join-ad-interest-group" feature.
1. Let |owner| be the result of [=parsing an origin=] with
|group|["{{AuctionAdInterestGroupKey/owner}}"].
1. If |owner| is failure, [=exception/throw=] a {{TypeError}}.
1. Let |name| be |group|["{{AuctionAdInterestGroupKey/name}}"].
1. Run these steps [=in parallel=]:
1. Let |permission| be the result of [=checking interest group permissions=] with
|owner|, |frameOrigin|, and "`leave`".
1. If |permission| is false, then [=queue a task=] to [=reject=] |p| with a
"{{NotAllowedError}}" {{DOMException}} and do not run the remaining steps.
1. [=Queue a task=] to [=resolve=] |p| with `undefined`.
1. [=list/Remove=] [=interest groups=] from the user agent's [=interest group set=] whose
[=interest group/owner=] is |owner| and [=interest group/name=] is |name|.
1. Return |p|.
</div>
<h2 id="running-ad-auctions">Running Ad Auctions</h2>
When a website or someone working on behalf of the website (e.g. a supply side platform, SSP) wants
to conduct an auction to select an advertisement to display to the user, they can call the
{{Window/navigator}}.{{Navigator/runAdAuction()}} function, providing an auction configuration that
tells the browser how to conduct the auction and which on-device recorded interests are allowed to
bid in the auction for the chance to display their advertisement.
<h3 id="createauctionnonce">createAuctionNonce()</h3>
{{Window/navigator}}.{{Navigator/createAuctionNonce()}} creates an auction nonce, a one-time ID
uniquely associated with a single call to {{Window/navigator}}.{{Navigator/runAdAuction()}}. This
nonce will need to be passed back in via a subsequent call to
{{Window/navigator}}.{{Navigator/runAdAuction()}} via the {{AuctionAdConfig}}. This is currently
only needed for auctions that use additional bids, for which the auction nonce will be included in
each additional bid as a way of ensuring that those bids are only used in the auctions for which
they were intended.
<xmp class="idl">
[SecureContext]
partial interface Navigator {
Promise<DOMString> createAuctionNonce();
};
</xmp>
<div algorithm="createAuctionNonce()">
The <dfn for=Navigator method>createAuctionNonce()</dfn> method steps are:
1. Let |p| be [=a new promise=].
1. Run the following steps [=in parallel=]:
1. Let |nonce| be the [=string representation=] of [=version 4 UUID=].
1. [=Queue a task=] to [=resolve=] |p| with |nonce|.
1. Return |p|.
</div>
<h3 id="runadauction">runAdAuction()</h3>
<xmp class="idl">
[SecureContext]
partial interface Navigator {
Promise<(USVString or FencedFrameConfig)?> runAdAuction(AuctionAdConfig config);
};
dictionary AuctionAdConfig {
required USVString seller;
required USVString decisionLogicURL;
USVString trustedScoringSignalsURL;
sequence<USVString> interestGroupBuyers;
Promise<any> auctionSignals;
Promise<any> sellerSignals;
Promise<USVString> directFromSellerSignals;
unsigned long long sellerTimeout;
unsigned short sellerExperimentGroupId;
USVString sellerCurrency;
Promise<record<USVString, any>> perBuyerSignals;
Promise<record<USVString, unsigned long long>> perBuyerTimeouts;
record<USVString, unsigned short> perBuyerGroupLimits;
record<USVString, unsigned short> perBuyerExperimentGroupIds;
record<USVString, record<USVString, double>> perBuyerPrioritySignals;
Promise<record<USVString, USVString>> perBuyerCurrencies;
sequence<AuctionAdConfig> componentAuctions = [];
AbortSignal? signal;
Promise<boolean> resolveToConfig;
};
</xmp>
<div algorithm="runAdAuction()">
The <dfn for=Navigator method>runAdAuction(|config|)</dfn> method steps are:
1. Let |global| be [=this=]'s [=relevant global object=].
1. Let |settings| be [=this=]'s [=relevant settings object=].
1. If |global|'s [=associated Document=] is not [=allowed to use=] the "[=run-ad-auction=]"
[=policy-controlled feature=], then [=exception/throw=] a "{{NotAllowedError}}" {{DOMException}}.
1. Let |auctionConfig| be the result of running [=validate and convert auction ad config=] with
|config| and true.
1. If |auctionConfig| is failure, then [=exception/throw=] a {{TypeError}}.
1. Let |p| be [=a new promise=].
1. Let |configMapping| be |global|'s [=associated Document=]'s [=node navigable=]'s
[=navigable/traversable navigable=]'s [=traversable navigable/fenced frame config mapping=].
1. Let |pendingConfig| be the result of [=constructing a pending fenced frame config=] with
|auctionConfig|.
1. Let |urn| be the result of running [=fenced frame config mapping/store a pending config=] on
|configMapping| with |pendingConfig|.
1. If |urn| is failure, then resolve |p| with null and return |p|.
1. Let |bidIgs| be a new [=list=] of [=interest groups=].
1. If |config|["{{AuctionAdConfig/signal}}"] [=map/exists=], then:
1. Let |signal| be |config|["{{AuctionAdConfig/signal}}"].
1. If |signal| is [=AbortSignal/aborted=], then [=reject=] |p| with |signal|'s
[=AbortSignal/abort reason=] and return |p|.
1. [=AbortSignal/Add|Add the following abort steps=] to |signal|:
1. [=Reject=] |p| with |signal|’s [=AbortSignal/abort reason=].
1. Run [=update bid counts=] with |bidIgs|.
1. Run [=interest group update=] with |auctionConfig|'s
[=auction config/interest group buyers=].
1. Let |queue| be the result of [=starting a new parallel queue=].
1. [=parallel queue/enqueue steps|Enqueue the following steps=] to |queue|:
1. Let |winnerInfo| be the result of running [=generate and score bids=] with |auctionConfig|,
null, |global|, |settings|, and |bidIgs|.
1. If |winnerInfo| is failure:
1. [=Queue a global task=] on [=DOM manipulation task source=], given |global|, to [=reject=]
|p| with a "{{TypeError}}".
1. If |winnerInfo| is null or |winnerInfo|'s [=leading bid info/leading bid=] is null:
1. [=Queue a global task=] on [=DOM manipulation task source=], given |global|, to resolve |p|
with null.
1. Otherwise:
1. Let |winner| be |winnerInfo|'s [=leading bid info/leading bid=].
1. Let |fencedFrameConfig| be the result of [=filling in a pending fenced frame config=] with
|pendingConfig|, |auctionConfig|, and |winnerInfo|.
1. [=fenced frame config mapping/Finalize a pending config=] on |configMapping| with |urn| and
|fencedFrameConfig|.
1. Wait until |auctionConfig|'s [=auction config/resolve to config=] is a boolean.
1. Let |result| be |fencedFrameConfig|.
1. If |auctionConfig|'s [=auction config/resolve to config=] is false:
1. Set |result| to |urn|.
1. [=Queue a global task=] on the [=DOM manipulation task source=], given |global|, to
resolve |p| with |result|.
1. [=Increment ad k-anonymity count=] given |winner|'s [=generated bid/interest group=] and
|winner|'s [=generated bid/ad descriptor=]'s [=ad descriptor/url=].
1. If |winner|'s [=generated bid/ad component descriptors=] is not null:
1. [=set/For each=] |adComponentDescriptor| in |winner|'s
[=generated bid/ad component descriptors=]:
1. [=Increment component ad k-anonymity count=] given |adComponentDescriptor|'s
[=ad descriptor/url=].
1. [=Increment reporting ID k-anonymity count=] given |winner|'s
[=generated bid/interest group=] and |winner|'s [=generated bid/ad descriptor=]'s
[=ad descriptor/url=].
1. Run [=interest group update=] with |auctionConfig|'s [=auction config/interest group buyers=].
1. Run [=update bid counts=] with |bidIgs|.
1. Run [=update previous wins=] with |winner|.
1. Return |p|.
</div>
<div algorithm>
To <dfn>construct a pending fenced frame config</dfn> given an [=auction config=]
|config|:
1. Return a [=fenced frame config=] with the following [=struct/items=]:
: [=fenced frame config/mapped url=]
:: a [=struct=] with the following [=struct/items=]:
: [=mapped url/value=]
:: `"about:blank"`
: [=mapped url/visibility=]
:: "<a for=visibility>`opaque`</a>"
: [=fenced frame config/container size=]
:: TODO: fill this in once container size is spec'd to be in |config|
: [=fenced frame config/content size=]
:: null
: [=fenced frame config/interest group descriptor=]
:: a [=struct=] with the following [=struct/items=]:
: [=interest group descriptor/value=]
:: a [=struct=] with the following [=struct/items=]:
: [=interest group descriptor/owner=]
:: ""
: [=interest group descriptor/name=]
:: ""
: [=interest group descriptor/visibility=]
:: "<a for=visibility>`opaque`</a>"
: [=fenced frame config/on navigate callback=]
:: null
: [=fenced frame config/effective sandbox flags=]
:: a [=struct=] with the following [=struct/items=]:
: [=effective sandbox flags/value=]
:: TODO: fill this in once fenced frame sandbox flags are more fully specified
: [=effective sandbox flags/visibility=]
:: "<a for=visibility>`opaque`</a>"
: [=fenced frame config/effective enabled permissions=]
:: a [=struct=] with the following [=struct/items=]:
: [=effective enabled permissions/value=]
:: «"<code>{{PermissionPolicy/attribution-reporting}}</code>",
"<code>[=private-aggregation=]</code>", "<code>[=shared-storage=]</code>",
"<code>[=shared-storage-select-url=]</code>"»
: [=effective enabled permissions/visibility=]
:: "<a for=visibility>`opaque`</a>"
: [=fenced frame config/fenced frame reporting metadata=]
:: null
: [=fenced frame config/exfiltration budget metadata=]
:: null
: [=fenced frame config/nested configs=]
:: a [=struct=] with the following [=struct/items=]:
: [=nested configs/value=]
:: an empty [=list=] «»
: [=nested configs/visibility=]
:: "<a for=visibility>`opaque`</a>"
: [=fenced frame config/embedder shared storage context=]
:: null
</div>
<div algorithm>
To <dfn>fill in a pending fenced frame config</dfn> given a [=fenced frame config=]
|pendingConfig|, [=auction config=] |auctionConfig|, and [=leading bid info=] |winningBidInfo|:
1. Let |winningBid| be |winningBidInfo|'s [=leading bid info/leading bid=].
1. Set |pendingConfig|'s [=fenced frame config/mapped url=]'s [=mapped url/value=] to
|winningBid|'s [=generated bid/ad descriptor=]'s [=ad descriptor/url=].
1. Let |adSize| be |winningBid|'s [=generated bid/ad descriptor=]'s [=ad descriptor/size=].
1. If |adSize| is not null:
1. Set |pendingConfig|'s [=fenced frame config/content size=] to a [=struct=] with the following
[=struct/items=]:
: [=content size/value=]
:: |adSize| TODO: Resolve screen-relative sizes and macros and cast this properly.
: [=content size/visibility=]
:: "<a for=visibility>`opaque`</a>"
1. Set |pendingConfig|'s [=fenced frame config/interest group descriptor=]'s
[=interest group descriptor/value=] to a [=struct=] with the following [=struct/items=]:
: owner
:: |winningBid|'s [=generated bid/interest group=]'s [=interest group/owner=]
: name
:: |winningBid|'s [=generated bid/interest group=]'s [=interest group/name=]
1. Set |pendingConfig|'s [=fenced frame config/fenced frame reporting metadata=] to a [=struct=]
with the following [=struct/items=]:
: [=fenced frame reporting metadata/value=]
:: If |auctionConfig|'s [=auction config/component auctions=] is [=list/empty=] (i.e., if
there was no component auction), then a [=struct=] with the following [=struct/items=]:
: [=fenced frame reporting metadata/fenced frame reporting map=]
:: a [=map=] «[ "<code>buyer</code>" → «», "<code>seller</code>" → «»]»
: [=fenced frame reporting metadata/direct seller is seller=]
:: true
Otherwise (i.e., if there was a component auction), a [=struct=] with the following
[=struct/items=]:
: [=fenced frame reporting metadata/fenced frame reporting map=]
:: a [=map=] «[ "<code>buyer</code>" → «», "<code>seller</code>" → «»,
"<code>component-seller</code>" → «»]»
: [=fenced frame reporting metadata/direct seller is seller=]
:: false
: [=fenced frame reporting metadata/visibility=]
:: "<a for=visibility>`opaque`</a>"
1. Set |pendingConfig|'s [=fenced frame config/on navigate callback=] to an algorithm with these
steps:
1. [=Asynchronously finish reporting=] with |pendingConfig|'s
[=fenced frame config/fenced frame reporting metadata=]'s
[=fenced frame reporting metadata/value=]'s
[=fenced frame reporting metadata/fenced frame reporting map=] and |winningBidInfo|.
1. Set |pendingConfig|'s [=fenced frame config/nested configs=]'s [=nested configs/value=] to
the result of running [=create nested configs=] with |winningBid|'s
[=generated bid/ad component descriptors=].
1. Return |pendingConfig|.
</div>
<div algorithm>
To <dfn>asynchronously finish reporting</dfn> given a
[=fencedframetype/fenced frame reporting map=] |reportingMap| and [=leading bid info=]
|leadingBidInfo|:
1. Let |buyerDone|, |sellerDone|, and |componentSellerDone| be [=booleans=], initially false.
1. If |leadingBidInfo|'s [=leading bid info/component seller=] is null, set |componentSellerDone|
to true.
1. [=iteration/While=]:
1. If |buyerDone|, |sellerDone|, and |componentSellerDone| are all true, then
[=iteration/break=].
1. Wait until |leadingBidInfo|'s [=leading bid info/buyer reporting result=] is not null,
or |leadingBidInfo|'s [=leading bid info/seller reporting result=] is not null, or
|leadingBidInfo|'s [=leading bid info/component seller reporting result=] is not null.
1. If |buyerDone| is false and |leadingBidInfo|'s [=leading bid info/buyer reporting result=]
is not null:
1. Let |buyerMap| be |leadingBidInfo|'s [=leading bid info/buyer reporting result=]'s
[=reporting result/reporting beacon map=].
1. If |buyerMap| is null, set |buyerMap| to an empty [=map=] «[]».
1. [=Finalize a reporting destination=] with |reportingMap|,
{{FenceReportingDestination/buyer}}, and |buyerMap|.
1. [=Send report=] to |leadingBidInfo|'s [=leading bid info/buyer reporting result=]'s
[=reporting result/report url=].
1. Set |buyerDone| to true.
1. If |sellerDone| is false and |leadingBidInfo|'s [=leading bid info/seller reporting result=]
is not null:
1. Let |sellerMap| be |leadingBidInfo|'s [=leading bid info/seller reporting result=]'s
[=reporting result/reporting beacon map=].
1. If |sellerMap| is null, set |sellerMap| to an empty [=map=] «[]».
1. [=Finalize a reporting destination=] with |reportingMap|,
{{FenceReportingDestination/seller}}, and |sellerMap|.
1. [=Send report=] to |leadingBidInfo|'s [=leading bid info/seller reporting result=]'s
[=reporting result/report url=].
1. Set |sellerDone| to true.
1. If |componentSellerDone| is false and |leadingBidInfo|'s
[=leading bid info/component seller reporting result=] is not null:
1. Let |componentSellerMap| be |leadingBidInfo|'s
[=leading bid info/component seller reporting result=]'s
[=reporting result/reporting beacon map=].
1. If |componentSellerMap| is null, set |componentSellerMap| to an empty [=map=] «[]».
1. [=Finalize a reporting destination=] with |reportingMap|,
{{FenceReportingDestination/component-seller}}, and |componentSellerMap|.
1. [=Send report=] to |leadingBidInfo|'s [=leading bid info/component seller reporting result=]'s
[=reporting result/report url=].
1. Set |componentSellerDone| to true.
</div>
<div algorithm>
To <dfn>create nested configs</dfn> given [=generated bid/ad component descriptors=]
|adComponentDescriptors|:
1. Let |nestedConfigs| be an empty [=list=] «».
1. If |adComponentDescriptors| is null:
1. Return |nestedConfigs|.
1. [=set/For each=] |adComponentDescriptor| of |adComponentDescriptors|:
1. Let |fencedFrameConfig| be a [=fenced frame config=] with the following [=struct/items=]:
: [=fenced frame config/mapped url=]
:: a [=struct=] with the following [=struct/items=]:
: [=mapped url/value=]
:: |adComponentDescriptor|'s [=ad descriptor/url=]
: [=mapped url/visibility=]
:: "<a for=visibility>`opaque`</a>"
: [=fenced frame config/container size=]
:: null
: [=fenced frame config/content size=]
:: If |adComponentDescriptor|'s [=ad descriptor/size=] is null, then null. Otherwise, a
[=struct=] with the following [=struct/items=]:
: [=content size/value=]
:: |adComponentDescriptor|'s [=ad descriptor/size=] TODO: Resolve screen-relative sizes and
macros and cast this properly.
: [=content size/visibility=]
:: "<a for=visibility>`opaque`</a>"
: [=fenced frame config/interest group descriptor=]
:: null
: [=fenced frame config/on navigate callback=]
:: null
: [=fenced frame config/effective sandbox flags=]
:: a [=struct=] with the following [=struct/items=]:
: [=effective sandbox flags/value=]
:: TODO: fill this in once fenced frame sandbox flags are more fully specified
: [=effective sandbox flags/visibility=]
:: "<a for=visibility>`opaque`</a>"
: [=fenced frame config/effective enabled permissions=]
:: a [=struct=] with the following [=struct/items=]:
: [=effective enabled permissions/value=]
:: «"<code>{{PermissionPolicy/attribution-reporting}}</code>",
"<code>[=private-aggregation=]</code>", "<code>[=shared-storage=]</code>",
"<code>[=shared-storage-select-url=]</code>"»
: [=effective enabled permissions/visibility=]
:: "<a for=visibility>`opaque`</a>"
: [=fenced frame config/fenced frame reporting metadata=]
:: null
: [=fenced frame config/exfiltration budget metadata=]
:: null
: [=fenced frame config/nested configs=]
:: a [=struct=] with the following [=struct/items=]:
: [=nested configs/value=]
:: an empty [=list=] «»
: [=nested configs/visibility=]
:: "<a for=visibility>`opaque`</a>"
: [=fenced frame config/embedder shared storage context=]
:: null
1. [=list/Append=] |fencedFrameConfig| to |nestedConfigs|.
1. Return |nestedConfigs|.
</div>
<div algorithm="validate and convert auction ad config">
To <dfn>validate and convert auction ad config</dfn> given an {{AuctionAdConfig}} |config| and a
[=boolean=] |isTopLevel|:
1. Let |auctionConfig| be a new [=auction config=].
1. Let |seller| be the result of [=parsing an origin=] with |config|["{{AuctionAdConfig/seller}}"].
1. If |seller| is failure, or its [=url/scheme=] is not "`https`", then [=exception/throw=] a
{{TypeError}}.
1. Optionally, [=exception/throw=] a "{{NotAllowedError}}" {{DOMException}}.
Note: This [=implementation-defined=] condition is intended to allow user
agents to decline for a number of reasons, for example the [=auctionConfig]'s seller's [=site=]
not being <a href="https://github.com/privacysandbox/attestation">enrolled</a>.
1. Set |auctionConfig|'s [=auction config/seller=] to |seller|.
1. Let |decisionLogicURL| be the result of running the [=URL parser=] on
|config|["{{AuctionAdConfig/decisionLogicURL}}"].
1. If |decisionLogicURL| is failure, or it is not [=same origin=] with |auctionConfig|'s
[=auction config/seller=], then [=exception/throw=] a {{TypeError}}.
1. [=Assert=]: |decisionLogicURL|'s [=url/scheme=] is "`https`".
1. Set |auctionConfig|'s [=auction config/decision logic url=] to |decisionLogicURL|.
1. If |config|["{{AuctionAdConfig/trustedScoringSignalsURL}}"] [=map/exists=]:
1. Let |trustedScoringSignalsURL| be the result of running the [=URL parser=] on
|config|["{{AuctionAdConfig/trustedScoringSignalsURL}}"].
1. If |trustedScoringSignalsURL| is failure, or it is not [=same origin=] with |auctionConfig|'s
[=auction config/seller=], then [=exception/throw=] a {{TypeError}}.
1. [=Assert=]: |trustedScoringSignalsURL|'s [=url/scheme=] is "`https`".
1. Set |auctionConfig|'s [=auction config/trusted scoring signals url=] to
|trustedScoringSignalsURL|.
1. If |config|["{{AuctionAdConfig/interestGroupBuyers}}"] [=map/exists=]:
1. Let |buyers| be a new empty [=list=].
1. [=list/For each=] |buyerString| in |config|["{{AuctionAdConfig/interestGroupBuyers}}"]:
1. Let |buyer| be the result of [=parsing an origin=] with |buyerString|.
1. If |buyer| is failure, or |buyer|'s [=url/scheme=] is not "`https`", then [=exception/throw=]
a {{TypeError}}.
1. [=list/Append=] |buyer| to |buyers|.
1. Set |auctionConfig|'s [=auction config/interest group buyers=] to |buyers|.
1. If |config|["{{AuctionAdConfig/auctionSignals}}"] [=map/exists=]:
1. Set |auctionConfig|'s [=auction config/auction signals=] to
|config|["{{AuctionAdConfig/auctionSignals}}"].
1. [=Handle an input promise in configuration=] given |auctionConfig| and |auctionConfig|'s [=auction config/auction signals=]:
* To parse the value |result|:
1. Let |auctionSignalsJSON| be the result of
[=serializing a JavaScript value to a JSON string=], given |result|.
1. Set |auctionConfig|'s [=auction config/auction signals=] to |auctionSignalsJSON|.
1. Set |auctionConfig|'s [=auction config/config idl=]["{{AuctionAdConfig/auctionSignals}}"] to |result|.
* To handle an error:
1. Set |auctionConfig|'s [=auction config/auction signals=] to failure.
1. Set |auctionConfig|'s [=auction config/config idl=]["{{AuctionAdConfig/auctionSignals}}"] to {{undefined}}.
1. If |config|["{{AuctionAdConfig/sellerSignals}}"] [=map/exists=]:
1. Set |auctionConfig|'s [=auction config/seller signals=] to
|config|["{{AuctionAdConfig/sellerSignals}}"].
1. [=Handle an input promise in configuration=] given |auctionConfig| and |auctionConfig|'s [=auction config/seller signals=]:
* To parse the value |result|:
1. Set |auctionConfig|'s [=auction config/seller signals=] to the result of
[=serializing a JavaScript value to a JSON string=], given |result|.
* To handle an error, set |auctionConfig|'s [=auction config/seller signals=] to failure.
1. If |config|["{{AuctionAdConfig/directFromSellerSignals}}"] [=map/exists=]:
1. TODO: The receiving end of this isn't specified yet, so there is no place to put the computed value.
1. [=Handle an input promise in configuration=] given |auctionConfig| and |config|["{{AuctionAdConfig/directFromSellerSignals}}"]:
* To parse the value |result|:
1. Let |directFromSellerSignalsPrefix| be the result of running the [=URL parser=] on |result|.
1. [=exception/Throw=] a {{TypeError}} if any of the following conditions hold:
* |directFromSellerSignalsPrefix| is failure;
* |directFromSellerSignalsPrefix| is not [=same origin=] with |auctionConfig|'s
[=auction config/seller=];
* |directFromSellerSignalsPrefix|'s [=url/query=] is not null.
1. [=Assert=]: |directFromSellerSignalsPrefix|'s [=url/scheme=] is "`https`".
* To handle an error:
1. TODO: set the rep in |auctionConfig| to failure.
1. If |config|["{{AuctionAdConfig/sellerTimeout}}"] [=map/exists=], set |auctionConfig|'s
[=auction config/seller timeout=] to |config|["{{AuctionAdConfig/sellerTimeout}}"] in milliseconds
or 500 milliseconds, whichever is smaller.
1. If |config|["{{AuctionAdConfig/sellerExperimentGroupId}}"] [=map/exists=]:
1. Set |auctionConfig|'s [=auction config/seller experiment group id=] to
|config|["{{AuctionAdConfig/sellerExperimentGroupId}}"].
1. If |config|["{{AuctionAdConfig/sellerCurrency}}"] [=map/exists=]:
1. If the result of [=checking whether a string is a valid currency tag=] on
|config|["{{AuctionAdConfig/sellerCurrency}}"] is false, [=exception/throw=] a {{TypeError}}.
1. Set |auctionConfig|'s [=auction config/seller currency=] to |config|["{{AuctionAdConfig/sellerCurrency}}"]
1. If |config|["{{AuctionAdConfig/perBuyerSignals}}"] [=map/exists=]:
1. Set |auctionConfig|'s [=auction config/per buyer signals=] to
|config|["{{AuctionAdConfig/perBuyerSignals}}"].
1. [=Handle an input promise in configuration=] given |auctionConfig| and |auctionConfig|'s [=auction config/per buyer signals=]:
* To parse the value |result|:
1. Set |auctionConfig|'s [=auction config/per buyer signals=] to a new [=ordered map=] whose
[=map/keys=] are [=origins=] and whose [=map/values=] are [=strings=].
1. [=map/For each=] |key| → |value| of |result|:
1. Let |buyer| be the result of [=parsing an origin=] with |key|. If |buyer| is failure, throw a {{TypeError}}.
1. Let |signalsString| be the result of [=serializing a JavaScript value to a JSON string=], given |value|.
1. [=map/Set=] |auctionConfig|'s [=auction config/per buyer signals=][|buyer|] to |signalsString|.
* To handle an error, set |auctionConfig|'s [=auction config/per buyer signals=] to failure.
1. If |config|["{{AuctionAdConfig/perBuyerTimeouts}}"] [=map/exists=]:
1. Set |auctionConfig|'s [=auction config/per buyer timeouts=] to
|config|["{{AuctionAdConfig/perBuyerTimeouts}}"].
1. [=Handle an input promise in configuration=] given |auctionConfig| and |auctionConfig|'s [=auction config/per buyer timeouts=]:
* To parse the value |result|:
1. Set |auctionConfig|'s [=auction config/per buyer timeouts=] to a new [=ordered map=] whose
[=map/keys=] are [=origins=] and whose [=map/values=] are [=durations=] in milliseconds.
1. [=map/For each=] |key| → |value| of |result|:
1. If |key| is "*", then set |auctionConfig|'s [=auction config/all buyers timeout=]
to |value| in milliseconds or 500 milliseconds, whichever is smaller, and [=iteration/continue=].
1. Let |buyer| be the result of [=parsing an origin=] with |key|. If |buyer| is failure,
[=exception/throw=] a {{TypeError}}.
1. [=map/Set=] |auctionConfig|'s [=auction config/per buyer timeouts=][|buyer|] to
|value| in milliseconds or 500 milliseconds, whichever is smaller.
* To handle an error, set |auctionConfig|'s [=auction config/per buyer timeouts=] to failure.
1. If |config|["{{AuctionAdConfig/perBuyerGroupLimits}}"] [=map/exists=], [=map/for each=]
|key| → |value| of |config|["{{AuctionAdConfig/perBuyerGroupLimits}}"]:
1. If |value| is 0, [=exception/throw=] a {{TypeError}}.
1. If |key| is "*", then set |auctionConfig|'s [=auction config/all buyers group limit=]
to |value|, and [=iteration/continue=].
1. Let |buyer| be the result of [=parsing an origin=] with |key|. If |buyer| is failure,
[=exception/throw=] a {{TypeError}}.
1. Set |auctionConfig|'s [=auction config/per buyer group limits=][|buyer|] to |value|.
1. If |config|["{{AuctionAdConfig/perBuyerExperimentGroupIds}}"] [=map/exists=], [=map/for each=]
|key| → |value| of |config|["{{AuctionAdConfig/perBuyerExperimentGroupIds}}"]:
1. If |key| is "*", then set |auctionConfig|'s
[=auction config/all buyer experiment group id=] to |value|, and [=iteration/continue=].
1. Let |buyer| the result of [=parsing an origin=] with |key|. If |buyer| is failure,
[=exception/throw=] a {{TypeError}}.
1. Set |auctionConfig|'s [=auction config/per buyer experiment group ids=][|buyer|] to |value|.
1. If |config|["{{AuctionAdConfig/perBuyerPrioritySignals}}"] [=map/exists=], [=map/for each=]