v3.0.0-rc1 session replays failing on older browsers - `Cannot assign to read only property 'open' of object '#<XMLHttpRequest>'`

[KieranP]

We have a few users accessing from Chrome 97 on Windows 7 machines. When they do, rollbar session replays break the page with the following error:

TypeError: Cannot assign to read only property 'open' of object '#<XMLHttpRequest>'

The code is minified in production, so the stack trace doesn't help much, but it does contain the function instrumentNetwork incase that helps.

I understand not wanting to fully support older browsers, all good. But if possible, can it be made to not run if not supported, so that it doesn't break the page?

[linear]

SDK-571

[waltjones]

@KieranP thank you for the report. Yes I think we can mitigate this.

Note, this appears to be the location, and is also present in the 2.x SDK.
https://github.com/rollbar/rollbar.js/blob/master/src/browser/telemetry.js#L220-L224