Devtools unstable on iOS

Environment
Provide version numbers for the following components (information can be retrieved by running tns info in your project folder or by inspecting the package.json of the project):

• CLI: 7.0.11 (tried @next as well)
• Cross-platform modules: 7.0.13
• iOS Runtime: 7.0.4 (tried 7.0.3 and 7.0.1 as well)
• XCode Version: 12.1
• Simulator iOS Version: 14.1

Describe the bug
Chrome DevTools do not show any network connection or elements.
Safari's inspector does not even show console.

To Reproduce

1. ns create devtools-test --ng --blank
2. Add a http call to app.component.ts via Angular's HttpClient or NativeScript's Http.
3. ns debug ios (--inspector if testing inspector)
4. Open DevTools link provided by cli (or switch to inspector)

Expected behavior

Expect to see http calls on the network tab, layout on elements tab, and console output on console tab.

Additional context
On a real project, application crashes when DevTools are open opened. Once this issue is reproduced for a minimal project, I can provide more information regarding that if the issue persists.

从复现步骤中的最小项目开始，使用 app.component.ts 和 ns debug ios 入口点。比较 Chrome DevTools 和 Safari inspector 在网络、元素和控制台输出方面的行为，然后验证预期的选项卡能够正常工作且不会导致应用程序崩溃。