.svgz images aren't displayed

[personalizedrefrigerator]

Environment

Joplin version: 2.11, 5d87b4ca3e3fcae6fa96b080d24e80f8f691edbc Platform: Android, desktop, edit: and iOS OS specifics: Android 14 emulator, Ubuntu 23.04

Steps to reproduce

1. GZip an SVG image and rename it to svgz
2. Attach the SVG image to a note as an image.

Describe what you expected to happen

The SVGZ image should be displayed.

Screenshot

See also

• https://en.wikipedia.org/wiki/SVG#Compression
• https://github.com/personalizedrefrigerator/joplin-plugin-freehand-drawing/issues/3

[laurent22]

There's a recent commit to add support for the AVIF format, so it can probably be implemented using the same pattern. I assume that it's supported by Electron?

[personalizedrefrigerator]

It looks like svgz is already in mime-utils-types.js. At least for Chrome, it looks like SVGZ images need a Content-Encoding: gzip header when served.

[personalizedrefrigerator]

One approach would be to manually decompress .svgz images, but that's a large amount of extra code to support this format.

An alternative might be to internally compress all image/svg+xml images (and perhaps some other types of attachments).

Edit/note: Renaming .svgz images to .svg does not fix the issue.

[github-actions[bot]]

Hey there, it looks like there has been no activity on this issue recently. Has the issue been fixed, or does it still require the community's attention? If you require support or are requesting an enhancement or feature then please create a topic on the Joplin forum. This issue may be closed if no further activity occurs. You may comment on the issue and I will leave it open. Thank you for your contributions.

[personalizedrefrigerator]

Still an issue.