Currently when popping out the Web Inspector panel into its own top level window, its “transient-for“ property is set to the window that contains the WebKitWebView. This forces the Inspector window to be stacked always on top of the window that contains the web view, making it impossible to bring the window with the web view to the front. This can be an issue in small screens where there is not enough space to comfortable arrange both windows in some way that both can be seen at the same time (e.g. side-by-side).
Created attachment 390237 [details] Patch
The commit-queue encountered the following flaky tests while processing attachment 390237 [details]: editing/spelling/spellcheck-async-remove-frame.html bug 158401 (authors: morrita@google.com, rniwa@webkit.org, and tony@chromium.org) The commit-queue is continuing to process your patch.
Comment on attachment 390237 [details] Patch Clearing flags on attachment: 390237 Committed r256114: <https://trac.webkit.org/changeset/256114>
All reviewed patches have been landed. Closing bug.