FF117 HTMLElement.togglePopover() returns boolean behind pref #20439
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FF117
HTMLElement.togglePopover()
returnsboolean
(behind pref) instead of None in https://bugzilla.mozilla.org/show_bug.cgi?id=1842845. This is due to a spec change.Other browsers do not implement this yet, but it is worth adding the subfeature now - it will be needed when the pref is removed.
Related docs work can be tracked in mdn/content#27417