Plantuml highlighting doesn't work anymore

[Sepphod]

I updated recently to 1.13.1. I am not sure if either the issue existed already in 1.13.0 as I discovered it by coincidence with 1.13.1. But I am pretty sure with 1.12.6 everything was working.

My gitea uses an external plantuml server to render plantuml code blocks within markdown files. Now it doesn't anymore. I have seen that the names of the html classes with the rendered plantuml code was changed from "language-plantuml" to "chroma language plantuml". I changed this in the javascript (example from gitea customize page). Even I escaped it. It doesn't work. But I detected in the javascript console in the safari that the custom javascript is not called anymore. Could it be that with the changing to server side highlighting this feature was removed? I have seen in the discourse a similar issue with ASCIDOC.

Otherwise I am open to any other proposals. Or I have to switch back to 1.12.6.
thx

[zeripath]

I have a feeling that this would be easier to solve on #configuration on Discord following which we could update the webpage

[Sepphod]

I don't understand this feeling. Is it a bug? or must the configuration be adapted?

[zeripath]

It's very likely a configuration issue. One which will require live debugging.

Once it's fixed we can come back here and suggest updates to the docs as necessary.

[Sepphod]

why are you assuming that it is an configuration issue? I mean it was working. And it was working very well. Or do you mean the configuration be updated due to the new feature of the server-side highlighting?
I mean it seems for me that the rendering isn't called anymore due to the enabling of the mermaid -stuff. Which is BTW working like hell for me. Seems like the client-side highlighting was disabled at all. OK I will check the PR for that. But I won't spend much effort. Otherwise I will go back to 1.12.6

[zeripath]

Just come to discord - it'll be easier to work this out there

[lunny]

Maybe related with #12047 ?

[Sepphod]

thnx that was the merge I was looking for. And now I remember I skipped 1.13.0 as I never trust a zeroed version. And I remember that a friend of mine mentioned something like the plantuml is suddenly not working anymore.

[Sepphod]

Ok somewhere here ydelafollye@845b9f1 it should be happened. the change to chroma IMO seems fine. For me it is weird that the footer.tmpl won't be added anyhow. So the js-function to establish the communication with the external plantuml server won't work - even if I added the "chroma " to the call.
#9553 is open anyway
I will roll back to 1.12.6 as my plantuml sketches are not rendered anymore :(

[zeripath]

dude seriously I asked you to come to discord so we could work out how to fix this.

[Sepphod]

Yeah we could do this - Otherwise it seems I will be doomed.
But I roll back anyhow. BTW I already did it. And for what do you need me? IMO you should add some plantuml example in a markdown file and let it render in a test gitea. You may debug it.

[Sepphod]

OK roll back doesn't seem to be the best way as Downgrading database version from '156' to '141' is not supported and may result in loss of data integrity. :(

[lunny]

You have to change the version on database manually.

[Sepphod]

Yes I have read ist too thx. But I saw that the issue may be fixed. So I will wart for a while

[6543]

@Sepphod can you provide some files to test agains?

just create a repo on https://try.gitea.io/