1646488 - Figure out what to do for autofocus in cross-origin iframe

Status: RESOLVED INVALID

(Core :: DOM: Core & HTML, task)

Description

[Kris Maglione [:kmag]]

It isn't Fission-compatible, and isn't likely to work with autofocus elements in OOP frames.

Comment 1

[Chris Peterson [:cpeterson]]

Do we actually allow autofocus in cross-origin iframes? How much do we care?

Tracking for Fission M7 Beta until we decide whether this needs to block shipping Fission.

Comment 2

[Neha Kochar [:neha]]

Henri, is this critical for blocking Fission Nightly or Fission Beta?

Comment 3

[Henri Sivonen (:hsivonen) (temporarily away from Bugzilla)]

I don't have actual evidence of use cases, but my guess is that this isn't critical or blocking (in fact, I think explicitly not allowing this might be a valid outcome).

Comment 4

[Neha Kochar [:neha]]

The issue is in GetInProcessTop usage in TriggerAutoFocus and nsAutoFocusEvent. Henri said this isn't disastrous and can be dealt with later so moving to MVP.

Comment 5

[Emilio Cobos Álvarez (:emilio)]

I think this is INVALID/WONTFIX, we already don't trigger autofocus for cross-origin iframes even without fission: https://searchfox.org/mozilla-central/rev/919f7400e2e12bc963ee2ae8400ef961972c3059/dom/base/BindContext.cpp#24

But please reopen if I somehow got that wrong.