QWebEngineView does not playback video that is loaded directly through qrc path

When loading a video through qrc path, qwebengineview cannot play it, instead showing a black screen and unusable video-controls (see attached image).

If instead loading a html file that has <video> tag which loads the same video, the video is properly played back.

Steps to reproduce:

• Run attached sample
• EXPECTED: Video is properly played
• ACTUAL: Video cannot be played