Maybe we need Mobile Safari WebView on @caniuse 
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Probably the one thing Google could do would be to pull Chrome off the iOS app store and explain to users that Apple won't allow real Chrome on iOS. Normal people have no idea this is the case so it gets no attention.
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And even if you could it would have no effect on embedded browsers. Even if you love Safari, it's an anticompetitive playing field and bad for everyone.
Thanks. Twitter will use this to make your timeline better. UndoUndo
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& Web Standards TL; Blink API OWNER
Named PWAs w/
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For my situation, I'll probably try the Web Share API rather than <a download>... but it's pretty disheartening that the Safari monopoly means installed web apps will be perpetually hamstrung on iOS by weird bugs.