I confirm that you could use a headless browser for this. This is actually what SingleFile CLI does [1]. Here is an example of JS code showing how to configure

I confirm that you could use a headless browser for this. This is actually what SingleFile CLI does [1]. Here is an example of JS code showing how to configure and inject SingleFile with puppeteer [2]. [1] https://github.com/gildas-lormeau/SingleFile/tree/master/cli https://github.com/gildas-lormeau/SingleFile/tree/master/cli [2] https://github.com/gildas-lormeau/SingleFile/blob/master/cli/back-ends/puppeteer.js https://github.com/gildas-lormeau/SingleFile/blob/master/cli...