Maybe we should first move this to Core (DOM: UI Events & Focus Handling ?) and ask about this macos issue? Seems like checkboxes are not properly capturing the space key event on macos. As comment 2 mentions, this can be reproduced on any page with a checkbox. If no other event handler captures the event, then pressing space will trigger a page scroll. Neil, you worked some time ago on https://bugzilla.mozilla.org/show_bug.cgi?id=1180761, which seems similar. Do you know if the current behavior is a regression?
Bug 1612798 Comment 4 Edit History
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Maybe we should first move this to Core (DOM: UI Events & Focus Handling ?) and ask about this macos issue? Seems like checkboxes are not properly capturing the space key event on macos. As comment 2 mentions, this can be reproduced on any page with a checkbox. If no other event handler captures the event, then pressing space will trigger a page scroll. Neil, you worked some time ago on https://bugzilla.mozilla.org/show_bug.cgi?id=1180761, which seems similar. Do you know if the current behavior is a regression? Edit: testing a bit more, the root cause of the issue seems to be that the checkbox doesn't gain focus when it is clicked.