[art] Defining a common fallback mechanism for unhandled URI schemes
"Soni L." <fakedme+art@gmail.com> Sat, 18 February 2023 09:57 UTC
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Subject: [art] Defining a common fallback mechanism for unhandled URI schemes
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As an alternative to making web+ an automatic fallback (as in the other thread), simply extend the URI scheme registry to contain an additional tag: a parent scheme. The parent scheme is invoked through an /.well-known/protocol-handler?target=[percent-encoded unhandled scheme URI] URI. Only parent schemes which support this well-known URI can be used, ofc. For example, the web+ap protocol could be (re-)registered with an https fallback. As such, if the user doesn't have a web+ap app installed, the OS would redirect, e.g. web+ap://fedi.example/@Foo towards https://fedi.example/.well-known/protocol-handler?target=web%2Bap%3A%2F%2Ffedi.example%2F%40Foo The URI scheme registry would have to support exporting the list of fallbacks, and OSes would have to add handling for them (and keep that up-to-date), but it'd at least make them far easier to register and use. Note the fallback is not to any given website, and it should not carry username/password over (since the username/password for the protocol may differ from how the fallback scheme interprets them, or may not be treated as an username/password combo by the protocol at all, while the fallback scheme does). Thoughts?