UWP：WinJS Webview preventDefault在Windows更新1703后无法正常工作

Question

Windows 10 Creators Update 1703 brought a new issue to my UWP app - I use a WinJS webview to open a web page which navigates to "myscheme://blahblah" after some time. I usually listen to MSWebViewUnsupportedUriSchemeIdentified to catch this event, call event.preventDefault(), and parse the "blahblah" part for my usage.

Before update 1703, the web page was displaying properly, but now that I have updated my windows 10 machine, the webview is blank once the page navigates to myscheme://blahblah. Almost as if event.preventDefault() doesnt work anymore. Anyone know how I can find out if any changes in 1703 cause this behavior?

Answer 1

与传递不支持的URI方案相比，使用window.external.notify（）并监听MSWebViewScriptNotify事件比传递不支持的URI方案要好100倍，并且它解决了我的问题。