The main reason is that they have their own built-in JDK in Android Studio so there is no version conflict. Once you make sure you don't have multiple versions installed and Java version is less than Java 15, it will work perfectly.

Unfortunately that cannot be changed. But you can disable the toolbar itself.

Here is a link about facebook issue:
https://developers.facebook.com/docs/facebook-login/android/deprecating-webviews

It has been deprecated as of now, which is after the release of v5.0

You can use either of two. PushAdmin comes with some extra features and API Access.

Image is not visible, kindly put a valid link so that we can clarify.

You don't need to use any kind of auth, but both of the headers only.

Here are some of apps:
https://play.google.com/store/apps/details?id=com.dechika.android

https://play.google.com/store/apps/details?id=com.classo.clock

https://play.google.com/store/apps/details?id=com.astrorobo.iwebnapp

Other users can also reply with their apps.

Such issues are only seen rarely due to network/ssl related issues. You can try changing network and it will resolve. However, we will be applying fixes so that such issue don't occur anymore.

Connect support:
https://websitetoapk.com/support/submit_ticket

You can use maybe some events in JavaScript to catch and detect back keypress, other than that, we don't have any such solution particularly for this issue.