FATAL:ipc_mojo_bootstrap.cc(729)] Check failed: message->data_num_bytes() <= Channel::kMaximumMessageSize

[WMmono]

when open some big pdf,the program crash.

[Archie3d]

Use loadFile instead of loadData, see readme for details.

[WMmono]

oh,I see.Thank you for your attention.

[WMmono]

After set #define QPDF_WIDGET_USE_CORS:URL scheme must be "http" or "https" for CORS request.

[WMmono]

Qt version:Qt5.15\Qt5.14
I don't how to fix it.

[Archie3d]

Have you disabled web security as described in readme?

[WMmono]

I just Uncomment the #define QPDF_WIDGET_USE_CORS in qpdfwidget.h,it will achieve the same effect,I think.
but still not work.

[WMmono]

here is the message in console:
qrc:/pdfview/pdf.js Fetch API cannot load file:///XXX.pdf. URL scheme must be "http" or "https" for CORS request.

and where the error be thrown
var PDFFetchStreamReader = function () {
……
fetch(url, createFetchOptions(this._headers, this._withCredentials, this._abortController)).then(function (response) {
……

[Archie3d]

You have to inject the --disable-web-security argument into your application as explained in readme.

[WMmono]

You have to inject the --disable-web-security argument into your application as explained in readme.

I uncomment the //#define QPDF_WIDGET_USE_CORS in qpdfwidget.h,
and it can inject the --disable-web-security argument into my application cloned form your project.

Support for PDF File Viewing was added in Qt 5.13.0.
Maybe it's about Qt version.

[WMmono]

I don’t know what the problem is.
I've tried Qt5.9.8,but it failed.

[Archie3d]

You may attach your pdf and I'll take a look. But mind that this project was created before Qt had a native QPdfDocument implementation. If you are on a newer Qt, you'd rather use pdf renderer that comes with Qt instead of my implementation, see https://doc.qt.io/qt-5/qtpdf-pdfviewer-example.html