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WebSockets not working, use of Google Firebase causes render crash

  • I am trying to connect to Google Firebase from a page I show in a QWebEngineView and the moment the following line is executed, the render process crashes (i.e. renderProcessTerminated is signalled).

    var ref = new Firebase("https://my-project.firebaseio.com/");

    Also, I cannot establish a WebSocket connection. I get an error that it failed for an unknown reason.

    Could these two be connected? I built the webengine from source here. Many things are working alright, e.g. YouTube.

  • The exit code of the renderer is 3.

  • Ok, it seems that WebSockets don't work fore me. If I force Firebase to use long-polling via


    before creating the Firebase object, then it works.

    I have webengine 5.9.1 built against qt 5.6.2. Has anyone tried websockets in this constellation?

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