[Qt 5.15.2] QWebEngineView crashes the sandboxed app on MacOS

[Alexuds79]

Hi. I am using QWebEngineView and QWebEnginePage in my Qt 5.15.2 application and everything works perfect in the development environment (Qt Creator). However, when I build the final sandboxed macOS app, when the app tries to run QWebEngine, the application crashes with the following log:

[84507:91671:1107/213108.495248:FATAL:mach_port_rendezvous.cc(141)] Check failed: kr == KERN_SUCCESS. bootstrap_check_in org.chromium.Chromium.MachPortRendezvousServer.84507: Permission denied (1100)

I think it might be related to the permissions that the app has or to some directive that should be added to the .entitlements file, needed to build the app, but I haven't found any solution yet. Can anyone help me with this?

Thanks in advance.

[Alexuds79]

@Alexuds79 In case anyone finds the same problem in the future, using QtWebView (https://doc.qt.io/qt-5.15/qtwebview-index.html) instead of QtWebEngineView seems to solve the problem on MacOS.

However, on Windows (again with the final application built), it seems that QtWebEngineView works perfectly but QtWebView does not (the WebView QML component is not shown).

Fortunately, with simple logic you can use one or the other depending on the platform.