1850446 - navigator.requestMIDIAccess fails to work on file:// schema

Status: UNCONFIRMED

(Core :: DOM: Device Interfaces, defect, P3)

Description

[gabriel]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/116.0

Steps to reproduce:

webMIDI is not available when a file schema secure context.

related https://bugzilla.mozilla.org/show_bug.cgi?id=1757153

serving from file:///test.html:

Actual results:

window.isSecureContext; // returns TRUE
navigator.requestMIDIAccess; // is UNDEFINED

Expected results:

navigator.requestMIDIAccess; // should be a function

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Widget: Gtk' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

The severity field is not set for this bug.
:cmartin, could you have a look please?

For more information, please visit BugBot documentation.

Comment 3

[Chris Martin [:cmartin]]

Assigning to Gabriele for now, since he works on the MIDI stuff.

Comment 4

[Gabriele Svelto [:gsvelto]]

This was a deliberate choice when the API was gated in bug 1778959. I don't know the reasoning behind it though as I didn't work on the API access permissions.

Comment 5

[gabriel]

@gsvelto, thank you for the context. Who do you think then should this be assigned to?

Comment 6

[Gabriele Svelto [:gsvelto]]

I'm not really sure, sorry. We've been busy with a lot of stuff and WebMIDI ended up in the back burner for a bit.

Comment 7

[nirod46877]

Worth noting that if trying to serve locally, "http://127.0.0.1:8080" and "http://[::1]:8080" work as expected but "http://[::]:8080" fails.

So, it's not just the "file://" schema but there's also other nuanced restrictions in even stranger places with little to no helpful errors explaining what's broken.