After Bug 32642, the spinner on cover images is hidden by verify_cover_images() which removes the .cover-slides class from the cover container. However, Bug 33848 modified the SCSS so that the spinner is now triggered by .cover-slider instead of .cover-slides. As a result, the spinner is never removed, because verify_cover_images() only removes .cover-slides. Test plan 1- Follow the test plan from Bug 32642. ==> The spinner is displayed and never disappears.
Created attachment 186384 [details] [review] Bug 40799: Loading spinner not removed because .cover-slider is now used instead of .cover-slides After Bug 32642, the spinner on cover images is hidden by verify_cover_images() which removes the .cover-slides class from the cover container. However, Bug 33848 modified the SCSS so that the spinner is now triggered by .cover-slider instead of .cover-slides. As a result, the spinner is never removed, because verify_cover_images() only removes .cover-slides. Test plan 1- Follow the test plan from Bug 32642. ==> The spinner is displayed and never disappears. 2. Reload the page. ==> The spinner disappears once the cover image is loaded.