[Feature] Support evaluate() as a content script

[tjenkinson]

It's possible to create a custom selector that runs as a content script like so

selectors.register(name, script, { contentScript: true });

I'd like to be able to do the same with evaluate(), so that I can run custom code in an isolated environment.

It doesn't look like this is currently supported. Would this be possible?

Thanks.

[pavelfeldman]

We are creating isolated worlds for ourselves internally, so it it feasible. So we can probably accept a contribution exposing such flag. What's your use case if you don't mind sharing?

[tjenkinson]

Great. I want to run a script in the page to select a random visible element, but I also want to make sure I'm using the original browser apis and not something that might have been messed with by something on the page itself.

Happy contribute this feature if you could point at the areas of code that need changing

[pavelfeldman]

Closing this as a part of the triage, please feel free to file a new issue with additional details. Given the limited resource and a lot of requests, we need to fulfill most popular requests and at the same time keep our issue database manageable.