Also save full-size image besides thumbnail

[Cris70]

Is your feature request related to a problem? Please describe.
Sometimes you have an HTML page with image thumbnails that point to their full-resolution counterparts (i.e. they are links to the full-resolution image).
When saving with SinglePage, I get a perfectly functioning page, but if I'm offline or if, for some reason, the original images are not available anymore, when I click on a thumbnail I get an error.

Describe the solution you'd like
I'd like the full-resolution counterparts to be embedded as well, so that I can still access them everywhere I copy my HTML file to.

Describe alternatives you've considered (optional)
I have not found any alternative.

[gildas-lormeau]

The main problem with this feature is that there is no standard way to detect that the thumbnail can display bu used to display a full-resolution image. Each site uses different techniques to implement it.

[FLAGEL]

I am well aware of the challenge to implement this request. That said, (to the surprise of no one) this (I believe) would be an immensely appreciated feature. An extension named "Imagus" could give some implementation hints.

While we are at it, I want to extend my gratitude to the developer of SingleFile - this is a brilliant extension and I am very happy you have chosen to share it with us as FOSS. :-)