Button Choose Image Not Working on webview?

MIT App Inventor Help
8

Adding CustomWebView to project doesn't mean WebViewer will be enabled to upload files.
CustomWebView is different and it should be initialized in a vertical arrangement. This arrangement should be properly visible and have full height and width.
After choosing image, your website shows a JS alert which you need to handle yourself. There are multiple ways to do that.
Normal way:

Here is working aia file.
NAU.aia (1.1 MB)

Hope you will read snippets related to CustomWebView.

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