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whatwg / html

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(un)registerProtocolHandler and localhost URLs

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fred-wang
fred-wang commented Aug 5, 2020

cc @mikewest @annevk @ericlaw1979

From https://html.spec.whatwg.org/multipage/system-state.html#normalize-protocol-handler-parameters:

'If the resulting URL record's scheme is not "https" or the resulting URL record's origin is not same origin with environment's origin, then throw a "SecurityError" DOMException.'

It seems this forbids localhost URLs like http://127.0.0.1 that are in a se

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compat good first issue topic: custom protocols
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