WebPage is not showing after loading URL

[Yuvi-GD]

I try to add licenses, but it still didn't work out issue is something else
I try to Reinstall whole Plugin, and my project is in CPP so i build it again but not working
Let me know what's the issue and how do i fix, (if you want any other info let me know)

Properties

Log

PIE: Server logged in
PIE: Play in editor total start time 0.108 seconds.
LogViewport: Scene viewport resized to 1280x720, mode Windowed.
WebViewLog: Warning: weblog:Error with Permissions-Policy header: Unrecognized feature: 'ch-ua-form-factors'. 0
WebViewLog: Warning: weblog:Document-Policy HTTP header: Unrecognized document policy feature name include-js-call-stacks-in-crash-reports. https://www.youtube.com/ 0
WebViewLog: weblog:LegacyDataMixin will be applied to all legacy elements.
Set _legacyUndefinedCheck: true on element class to enable. https://www.youtube.com/s/_/ytmainappweb/_/js/k=ytmainappweb.kevlar_base.en_US.iBMqfd96L2k.es5.O/am=AAAg/d=0/br=1/rs=AGKMywHoHJtwUSK03B0LM5RcLvbbJuz1xQ 9422
WebViewLog: Error: weblog:Blocked script execution in 'about:blank' because the document's frame is sandboxed and the 'allow-scripts' permission is not set. https://www.youtube.com/s/_/ytmainappweb/_/js/k=ytmainappweb.kevlar_base.en_US.iBMqfd96L2k.es5.O/am=AAAg/d=0/br=1/rs=AGKMywHoHJtwUSK03B0LM5RcLvbbJuz1xQ 13349
WebViewLog: Warning: weblog:Error with Permissions-Policy header: Unrecognized feature: 'ch-ua-form-factors'. 0
WebViewLog: Warning: weblog:Document-Policy HTTP header: Unrecognized document policy feature name include-js-call-stacks-in-crash-reports. https://www.youtube.com/ 0
WebViewLog: weblog:LegacyDataMixin will be applied to all legacy elements.
Set _legacyUndefinedCheck: true on element class to enable. https://www.youtube.com/s/_/ytmainappweb/_/js/k=ytmainappweb.kevlar_base.en_US.iBMqfd96L2k.es5.O/am=AAAg/d=0/br=1/rs=AGKMywHoHJtwUSK03B0LM5RcLvbbJuz1xQ 9422
WebViewLog: Error: weblog:Blocked script execution in 'about:blank' because the document's frame is sandboxed and the 'allow-scripts' permission is not set. https://www.youtube.com/s/_/ytmainappweb/_/js/k=ytmainappweb.kevlar_base.en_US.iBMqfd96L2k.es5.O/am=AAAg/d=0/br=1/rs=AGKMywHoHJtwUSK03B0LM5RcLvbbJuz1xQ 13349
WebViewLog: Warning: weblog:The resource https://i.ytimg.com/generate_204 was preloaded using link preload but not used within a few seconds from the window's load event. Please make sure it has an appropriate as value and it is preloaded intentionally. https://www.youtube.com/ 0

[aSurgingRiver]

您在 iframe 中使用了跨域么？

[Yuvi-GD]

Do you use cross-domain in iframes?

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Hi @aSurgingRiver,
Just a quick update—turns out the issue was caused by having both the GitHub version and the FAB-installed (marketplace) version of the plugin in my UE 5.3 project. Removing the manually cloned one fixed it—only the marketplace version is active now and everything works as expected.

If anyone else runs into a similar issue:
Check if multiple versions of the same plugin are being loaded. That was the culprit in my case.

Thanks again for your support! 🙏🫂

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