Created attachment 352213 [details] [Image] Inactive window with text selection This seems similar to https://bugs.webkit.org/show_bug.cgi?id=188112, but may be a separate issue. I'll leave it up to you!
<rdar://problem/45238712>
Created attachment 357662 [details] Patch This turned out to be simply a CodeMirror issue. Trivial fix!
Created attachment 357663 [details] [Image] With patch applied
*** Bug 188112 has been marked as a duplicate of this bug. ***
Comment on attachment 357662 [details] Patch rs=me, nice fix
Comment on attachment 357662 [details] Patch Clearing flags on attachment: 357662 Committed r239386: <https://trac.webkit.org/changeset/239386>
All reviewed patches have been landed. Closing bug.