Currently, the computed trace is built even if the Computed Styles pane is collapsed. Patch to follow.
Created attachment 91697 [details] [PATCH] Suggested solution
Comment on attachment 91697 [details] [PATCH] Suggested solution View in context: https://bugs.webkit.org/attachment.cgi?id=91697&action=review > Source/WebCore/inspector/front-end/StylesSidebarPane.js:515 > + section.expanded = this._computedStylePane.expanded; style rule sections should never be collapsed. if you fine one that is, please fix it in its constructor. > Source/WebCore/inspector/front-end/StylesSidebarPane.js:519 > + section.expanded = true; ditto > Source/WebCore/inspector/front-end/StylesSidebarPane.js:667 > + if (!this.section.expanded) ditto
This issue is covered by bug 60813.