Deleting a stylesheet's rule does not apply the changes to the current page once it has been deleted by deleteRule. Steps to reproduce: 1. Load attached testcase. The link has a style defined to make it bold when hovered over. 2. Click button to disable said style; hover over link. Expected result: Once the rule deleted, the link should not go bold when hovered over. Actual result: The original style remains, the page is unaffected; the link still goes bold when hovered. Notes: Testcase works correctly on Firefox. This bug observed on both official releases of Safari on updated 10.3 & 10.4
Created attachment 4481 [details] testcase
*** This bug has been marked as a duplicate of 5153 ***