SVG not legible in dark mode

[Andyuu]

MDN URL

https://developer.mozilla.org/en-US/docs/Web/HTTP/Guides/Authentication

What specific section or headline is this issue about?

The general HTTP authentication framework

What information was incorrect, unhelpful, or incomplete?

https://mdn.github.io/shared-assets/images/diagrams/http/authentication/basic-auth.svg

The svg is not legible while using dark mode

What did you expect to see?

Being able to see the text outside of the boxes like in light mode

Do you have any supporting links, references, or citations?

No response

Do you have anything more you want to share?

No response

MDN metadata

Page report details

• Folder: en-us/web/http/guides/authentication
• MDN URL: https://developer.mozilla.org/en-US/docs/Web/HTTP/Guides/Authentication
• GitHub URL: https://github.com/mdn/content/blob/main/files/en-us/web/http/guides/authentication/index.md
• Last commit: https://github.com/mdn/content/commit/3a50bf634f24f832d97e3e2add4a4633ab255217
• Document last modified: 2025-08-01T05:10:46.000Z

[Josh-Cena]

cc @wbamberg

[bsmth]

Thanks for reporting, the source is here: https://github.com/mdn/shared-assets/blob/main/images/diagrams/http/authentication/basic-auth.mmd

[wbamberg]

I wonder if this is a regression: when I updated the CORS diagrams the other day (https://github.com/mdn/shared-assets/pull/65) I found a similar problem. I was able to fix it by regenerating the SVGs from the Mermaid sources.

[wbamberg]

See also e.g. https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API/Using_Service_Workers#setting_up_to_play_with_service_workers