Fix origins pattern to allow localhost and port (#19)

Dockerfile

@@ -51,7 +51,7 @@ LABEL org.opencontainers.image.description="Run static-cms with GitHub OAuth pro
 
 # Environment vars
 ENV LOGLEVEL=info
-ENV ORIGINS=http://localhost
+ENV ORIGINS=localhost
 #
 ENV GIT_HOSTNAME=
 ENV OAUTH_CLIENT_ID=

app/netlify-cms-github-oauth-provider/origins-pattern-fix.patch

@@ -0,0 +1,11 @@
+diff --git a/login_script.js b/login_script.js
+index d7ef9ca..c8b8db3 100644
+--- a/login_script.js
++++ b/login_script.js
+@@ -1,5 +1,5 @@
+ const REQUIRED_ORIGIN_PATTERN = 
+-  /^((\*|([\w_-]{2,}))\.)*(([\w_-]{2,})\.)+(\w{2,})(\,((\*|([\w_-]{2,}))\.)*(([\w_-]{2,})\.)+(\w{2,}))*$/
++  /^((\*|\d.\d.\d.\d|[\w_-]{2,})+(\.([\w_-]{2,}))*)(:\d+)?$/
+
+ if (!process.env.ORIGINS.match(REQUIRED_ORIGIN_PATTERN)) {
+   throw new Error('process.env.ORIGIN MUST be comma separated list \