LoadStarted WebView event doesn't trigger on Android

I am using [loadStarted] and [loadFinished] events in a Webview in NativeScript/Angular, among other things, to start and stop a spinner. On my iPhone both events are triggered as soon as navigation starts and ends. On my Android phone the loadStarted event isn't triggered causing the spinner to malfunction. Looks like only links with tel:, mailto: and loc: trigger the [loadStarted] event.

In node module [webview-utils.android.js], function [onPageStarted], line 47 there is this If statement: if (!isHttpRequest || ++this.startEventCount === 1) The ++ increments this.startEventCount while testing === 1 which will only be true the first time a pageLoad starts. In my opinion this causes the loadStarted event to be called only once (unless the url starts with [tel:, mailto: or loc:]) Having fixed this locally, I noticed that the loadStarted event is triggered too late. Showing the spinner only a few milliseconds before the webpage finishes loading.

Non-trigger and too late trigger of [loadStarted] both don't work for my App.
Are there solutions to these problems?

XML:
```

```
TypeScript:
```
private onLoadFinished(args: any) {
console.log("== onLoadFinished ==");
this.isBusy = false;
}
private webviewTrigger(args: any) {
console.log("== webviewTrigger ==");
var webView: WebView = args.object;
console.log(webView);
// get location
if (args.url.startsWith('loc:')) {
let arr = args.url.split(":");
this.registerModel.push_action = this.registrationService.composeUrl() + arr[1] + "?longitude=" + this.lastLocation.longitude + "&latitude=" + this.lastLocation.latitude;
this.navigateToAction();
webView.reload();
return;
// handle mailto: and tel:
} else if (args.url.startsWith('mailto:') || args.url.startsWith('tel:')) {
utils.openUrl(args.url);
webView.reload();
return;
}
// start spinner
this.isBusy = true;
}
```
Terminal log after tapping some links:
```
JS: == onNavigatingTo ==
chromium: [INFO:library_loader_hooks.cc(51)] Chromium logging enabled: level = 0, default verbosity = 0
JS: == webviewLoaded ==
JS: WebView(44)
JS: == setHTTPHeader ==
JS: == onSpinnerLoaded ==
JS: == onNavigatedTo ==
JS: == webviewTrigger ==
JS: WebView(44)
JS: indicator.busy changed to: true
JS: ===Location===
JS: == onLoadFinished ==
JS: indicator.busy changed to: false
JS: == onLoadFinished ==
JS: == onLoadFinished ==
JS: == onLoadFinished ==
```

Start in webview-utils.android.js at onPageStarted around line 47 and reproduce navigation in an Android WebView using the loadStarted and loadFinished handlers shown in the issue. Trace startEventCount and the event timing for HTTP, tel:, mailto:, and loc: URLs. Done means each relevant navigation triggers loadStarted early enough for the spinner to work, followed by loadFinished.

Written by the indexing model from the issue text.