Talking about the White Screen of WKWebView on 64 bit Devices
- 2021-12-19 07:03:49
When using WKWebView with 32-bit app, if running on 64-bit devices, there will be 1 problem:
(1) iOS8.1 system, some web pages are loaded with white screens, such as Baidu and iOS8.3 seem to be no problem
(2) A white screen will appear when inputting Chinese characters in the web input box
Search for the root cause of the problem:
WKWebView's WebProcess runs out-of-process as a 64-bit process on hardware supporting 64bit. There is a 32bit/64bit marshalling IPC bug for 32 bit apps using the WKWebView client on such hardware. The bug causes the WebProcess to exit, leaving a blank screen.
That is, bug of an interprocess communication.
Solution that enables app to support arm64 without problems.