I am keen seeing the relatively new W3C Reporting API (v1), even though browser support is still limited at the moment.

In the existing documentation ( web.dev, MDN ), it is mentioned that one type of report types is Crash (explanations for this type are: "The browser crashes while your site is open." / "Occurrence of crashes." / "Indicates that the website stopped running due to a browser crash.").

Based on the articles I found, I am wondering if the report type Crash also includes reports for unhandled javascript exceptions like the following code produces:

// undefinedVar is undefined
undefinedVar.toString()

(In the browser console, this code generates an error log like "Uncaught ReferenceError: undefinedVar is not defined".)

Are such unhandled javascript exceptions produced by a site also reported via the Reporting API using the Crash type or will such reports only generated for "real" browser crashes (=browser process crashed)?