Unity Mobile WebGL Compatibility
It works on your phone and your browser, but it's still far from general support and that's why Unity discourages it .
As for disabling the warning, it was implemented at the beginning UnityLoader.js
and you can remove it easily.
var UnityLoader=UnityLoader||{compatibilityCheck:function(e,t,r){UnityLoader.SystemInfo.hasWebGL?UnityLoader.SystemInfo.mobile?e.popup("Please note that Unity WebGL is not currently supported on mobiles. Press OK if you wish to continue anyway.",[{text:"OK",callback:t}]) (...)
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Therefore Unity WebGL assemblies mostly don't work on mobile devices . But you can check our article here on how to test it to see if your specific game works https://simmer.io/articles/testing-a-unity-webgl-build-on-mobile
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Here is the WegGL unity solution not currently supported on mobiles.
https://naisky.com/2019/05/22/please-note-that-unity-webgl-is-not-currently-supported-on-mobiles-press-ok-if-you-wish-to-continue- in any case, good /
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