Starting from Firefox 60, I'd like to enable <div> as default paragraph
separator of contenteditable/designMode editor by default even in
release channel.
When user typing Enter key in editing host (or body in designMode),
Firefox 59 and earlier insert <br> element. However, the other browsers
insert <div> element (and wraps current line with <div> too). This is
declared by execCommand spec (Unofficial draft):
https://w3c.github.io/editing/execCommand.html#the-insertparagraph-command
We've already enabled this behavior on Nightly and Early Beta since
Firefox 55:
https://bugzilla.mozilla.org/show_bug.cgi?id=1297414
And now, we don't have confirmed regression reports which we haven't
worked on. Additionally, once we use same behavior with the other
browsers in this major difference, new web services could becomes not
supporting our current behavior. That means ESR users may become not to
be able to use such web services. Therefore, I'd like to enable this
before shipping ESR 60.
The bug is:
https://bugzilla.mozilla.org/show_bug.cgi?id=1430551
Note that even if some web services have trouble with new our behavior,
they can take the old behavior with inserting this line:
document.execCommand("defaultParagraphSeparator", false, "br");
--
Masayuki Nakano <masay...@d-toybox.com>
Software Engineer, Mozilla
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