How to override `location.href` in Electron to a custom URL?

Description

Is it possible to modify or override the perceived current location and origin in Electron.js?

I am loading a local .html file in Electron, and I need to manually override location.href, document.domain, and all other references to the current location to point to https://example.com/my/page in order for some external libraries (e.g. reCAPTCHA) to work with the local page.

Is it possible to set the current location to be example.com, without actually making a request to the remote URL, so that any javascript on the page thinks that the current URL is that, instead of app://....?

What I've tried

For my tests, I achieved it by running a MITM proxy that intercepts HTTPS requests, and instead of making a request to the origin, responds with a locally generated html page, which therefore I can inject my actual content into.

However, I don't want to go with this approach, and I was wondering if Electron could natively masquerade as a custom URL while loading local files, and report to any content un the page with the appropriate location/origin.

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