In line debugger - can't connect through websocket

Environment

CLI: 7.0.8
Core: 7.0.11
Android Runtime: 7.0.0
Plugin(s): nativescript vue
Chrome: 86.0.4240.75 (official 64 bit)
package.json

"dependencies": {
    "@nativescript/core": "^7.0.8",
    "@nativescript/webpack": "^3.0.0",
    "nativescript-couchbase-plugin": "^0.9.6",
    "nativescript-fonticon": "^2.0.2",
    "nativescript-vue": "^2.6.1",
    "nativescript-vue-navigator": "^1.2.0",
    "vue-class-component": "^7.2.6",
    "vue-property-decorator": "^9.0.0"
},
"devDependencies": {
    "@babel/core": "^7.0.0",
    "@babel/preset-env": "^7.0.0",
    "@nativescript/android": "7.0.0",
    "@nativescript/types": "^7.0.0",
    "@types/node": "^13.13.21",
    "babel-loader": "^8.1.0",
    "nativescript-vue-template-compiler": "^2.6.0",
    "node-sass": "^4.13.1",
    "typescript": "^3.8.3",
    "vue": "^2.6.11",
    "vue-loader": "^15.9.1"
}

Describe the bug The system doesn't break on the 'debugger'' line when set on main.ts. and shows the message: 'can't connect through WebSocket'.

To Reproduce

create a simple Vue project with TS.
add a debugger to main.ts.
run debugging from the command line (the specified one I've used:
```
ns debug android --debug-brk --emulator --timeout 300
```
go to the predefined URL created by the ns command line (devtools://devtools/bundled/inspector.html?ws=localhost:40000).
you should get the WebSocket disconnected message from chrome devtools.

Expected behavior

Chrome devtools should break on the breakpoint.

Sample project

main.ts

import Vue from 'nativescript-vue';
import Main from './components/main.vue';

debugger;

Vue.config.silent = false;

new Vue({
    render: (h) => h('frame', [h(Main)]),
}).$start();

Additional context I've set on the main.ts the breakpoint by using the 'debugger' (Debug CLI) option. After that I've run the command specified for debugging, I couldn't connect (at least that was what chrome devtools was showing). Some couple of tries later I've said enough and started to debug the android runtime by using one of your guidelines regarding debugging starting scripts in android-runtime (Debug android runtime), found the problem with the ShouldBreak method (it couldn't handle the scope with the isolate_) and also with getDocument method (The document is empty as it isn't loaded yet, I think) . To be honest, I'm not a specialist regarding C++ and Java, I'm experienced mostly in C# and some of the JavaScript.

NativeScript / android

In line debugger - can't connect through websocket #1640