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This solves a class of issues when the WebView loses "context" that a subsequent page load is the same as what was attempted to be loaded previously. This solves a bug where a HTTP redirect in combination with history manipulations causes a user to be stuck and prevented from going back. Since WebView requests are allowed to happen normally, debugging the WebView and tracking redirects and page load initiators is more accurate and easier. This will also bypass bridge latency and provide a faster navigation. To do this, we must lock in the shouldOverrideUrlLoading callback and send an event to JS. Currently, this callback is ran on the main UI thread, of which we have no control over. This is problematic as using the bridge in most ways seems to require the main UI thread, which will cause a deadlock. However, using BatchedBridge for Java->JS and a synchronous method for JS->Java doesn't cause any problems. Additionally, it's been designed so that if WebView suddenly runs the callback on a different thread allowing for concurrency, it will continue to work.