Masayuki Nakano f9bedeed22 Bug 1719387 - Make HTMLEditor::HandleInsertText() allow to insert text outside <body> in XHTML document r=m_kato
With the change of bug 1716863, it retrieves editing host, but it's `nullptr`
if there is no `<body>` element in XHTML document.  The root cause should be
fixed in bug 1697989, but for now, we should allow it only in XHTML document
for safer regression fix.

Differential Revision: https://phabricator.services.mozilla.com/D119483
2021-07-12 03:55:21 +00:00

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