Because of: REGRESSION (249800@main): Cannot edit compose body field on outlook.com
https://github.com/WebKit/WebKit/pull/2102
<rdar://problem/96477103>
Committed 252180@main (e4b63beaeb74): <https://commits.webkit.org/252180@main> Reviewed commits have been landed. Closing PR #2102 and removing active labels.