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navigator.isProtocolHandlerRegistered and .unregisterProtocolHandler #3685

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c960657 opened this Issue Aug 25, 2017 · 0 comments

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c960657 commented Aug 25, 2017

In addition to navigator.registerProtocolHandler I would like to see support for navigator.isProtocolHandlerRegistered and navigator.unregisterProtocolHandler.

The methods were defined in an early HTML5 draft specification but were removed in HTML 5.1.

Chrome 60
unregisterProtocolHandler is supported
isProtocolHandlerRegistered is WontFix'ed: https://bugs.chromium.org/p/chromium/issues/detail?id=121825

Firefox 55
Not supported
https://bugzilla.mozilla.org/show_bug.cgi?id=440620

Safari 10.1.2
Not spported, despite this: https://bugs.webkit.org/show_bug.cgi?id=73176

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