197349 2019-04-27 19:42:05 -0700 WKWebView browser back (history back) ，a white screen occurs 2025-06-05 17:42:05 -0700 1 1 1 Unclassified WebKit Layout and Rendering WebKit Nightly Build All iOS 12 NEW P2 Major --- 1 will.wb webkit-unassigned bfulgham simon.fraser yongholeeme zalan oldest_to_newest 1531023 0 will.wb 2019-04-27 19:42:05 -0700 The WKWebView browser backs up the previous page, causing the page on the previous page to have no layout rendering and a white screen. Returning the WKWebView page to the previous page will not re-execute the script script, nor will it trigger the reload event. This may be due to the page management and caching mechanism of WKWebView, which causes the previous page to appear white screen and the layout is not successful. 1531024 1 simon.fraser 2019-04-27 19:48:50 -0700 Please file this at bugreport.apple.com, with a test app that we can run to reproduce the problem.