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  1. Qt
  2. QTBUG-53411

Reloading WebEngineView removes channel and underlying `window.qt`

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P1: Critical
    • Resolution: Done
    • Affects Version/s: 5.7.0 Beta
    • Fix Version/s: 5.7.1
    • Component/s: WebChannel, WebEngine
    • Labels:
      None
    • Commits:
      ca6762abde85fe3104ec4f064b85319474ba2deb

      Description

      Reloading the page rendered in a WebEngineView results in the web page unable to access `window.qt` in JavaScript for creating a channel. This is a regression from 5.6.

      The object exists on the view creation step and so works on first run through. A `reload()` of the page is enough to lose the object. Is this expected, or a genuine bug? If expected, what should the application do to re-establish the channel/`window.qt` on reload?

      Attached is a modified version of http://blog.trumpton.org.uk/2015/09/qt-webengineview-communication-with.html in an attempt to provide a minimal environment - but we stumbled into it on our project over at https://github.com/plexinc/plex-media-player - since reloading the page is a valid error handling state.

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            • Assignee:
              jturcott Jocelyn Turcotte
              Reporter:
              domc Dom Crayford
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              Dates

              • Created:
                Updated:
                Resolved:

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