Add custom http headers to Angular Client Side Report Designer and Viewer (ll-webreportdesigner, ll-webreportviewer)

Hello,

I am using the Combit List&Label 30 Web Report Designer and Viewer in angular according to documentation.

Backend: AspNetCore
Frontend: Angular 15

Backend and frontend are in separated projects/process.

I am able to render the report designer in angular application using the following code:

<ll-webreportdesigner
      id="reportDesigner"
      backendUrl="https://localhost:7261/LLWebReportDesigner"
      [defaultProject]="itemId"
    ></ll-webreportdesigner>

Now I need to add custom http headers which is a very common feature for all web components.

I need to add headers for authorization, language, etc…

There is no mention of this feature in the official documentation.

How can we achieve that?