# STEPS TO REPRODUCE: 1. inspect any page with a <canvas> 2. go to the Canvas tab 3. click on one of the <canvas> cards => navigation sidebar does not show (and the button to toggle it is disabled)
<rdar://problem/49910618>
Created attachment 367432 [details] Patch
Created attachment 367433 [details] Patch
Comment on attachment 367433 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=367433&action=review > Source/WebInspectorUI/ChangeLog:12 > + Now that we no longer call `addSubview` when adding a sidebar panel, we can't check to see > + if `parentSidebar` has been set, as that is just an alias for `parentView`. Told you it would cause regressions. :) Maybe parentSidebar should change, since the Sidebar still holds it and shows it in the navigation bar.
Comment on attachment 367433 [details] Patch Clearing flags on attachment: 367433 Committed r244282: <https://trac.webkit.org/changeset/244282>
All reviewed patches have been landed. Closing bug.