Hello,
============Update===========
The complete project can be found here: https://learn.microsoft.com/en-us/samples/xamarin/xamarin-forms-samples/customrenderers-hybridwebview/. This is sample code from MSFT. The Android version does not work the same as the Apple version.
The "index.html" in the Assets folder of the Project, which is used in the Webview, references a quite old version of JQuery. Just update the version from "http://code.jquery.com/jquery-2.1.4.min.js" to "https://code.jquery.com/jquery-3.5.1.min.js" and it should work again in the "index.html".
Best Regards,
Leon Lu
If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.