In NPF posts, srcset attribute prevents images from being displayed when browsing the backup in offline mode

[noughtlux]

In both old format posts and NPF posts, images are downloaded properly during the backup process. Nevertheless, by opening the downloaded backup in browser in offline mode, images are displayed correctly in posts in the old format only, while in NPF posts images are not displayed. Inspecting the source page of both types of posts in the backup, I noticed that in NPF posts there was the srcset attribute, while in the old format ones there was not. Deletion of this attribute in the source code of a single NPF post resulted in the image of the post itself being displayed correctly

OS: Debian 12.4
Browser: Firefox 115.6.0esr
This repo cloned at: 563d6f1 commit

[jessienab]

Still happening. Can confirm the images ARE downloaded locally, and accessing the file directly in the browser (ex. ../media/filename.jpg) will load it directly and properly; it just does not work in the offline posts.

OS: Arch Linux
Browser: IceCat (Firefox) 115.9.1esr
pip install tumblr-utils[all] on 2024-05-03 , 1.0.2.post1

I can provide sample files if needed. I'm not sure if I'm using NPF posts though... sample of the issue rendered in browser: