Mathjax rendering doesn't work on self-hosted instances of drawio docker image.

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• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a feature request that matches the one I want to file, without success.

Describe the bug Mathjax rendering doesn’t work since major 20.0.0 release upgrade on self-hosted instances of drawio docker image.

To Reproduce Steps to reproduce the behavior:

1. Install self-hosted docker image of drawio tag >=20.0.0
2. Create, open a file.
3. Check Menu–>Extras–>Mathematical Typesetting tick is on
4. Add text or rectangle with any Latex mat code, e.g. $$\alpha^2$$
5. Actually it’s remained unrendered…

Expected behavior

draw.io version (In the Help->About menu of the draw.io editor):

• Tried different versions: 20.2.5, 20.2.6, 20.0.3

Logs of docker container

root@4606b9ece5e6:/usr/local/tomcat# cat logs/localhost_access_log.2022-11-07.txt
172.221.0.3 - - [07/Nov/2022:13:53:22 +0000] "GET / HTTP/1.1" 200 13349
172.221.0.3 - - [07/Nov/2022:13:53:22 +0000] "GET /styles/grapheditor.css HTTP/1.1" 200 50988
172.221.0.3 - - [07/Nov/2022:13:53:22 +0000] "GET /js/PreConfig.js HTTP/1.1" 200 1413
172.221.0.3 - - [07/Nov/2022:13:53:22 +0000] "GET /js/app.min.js HTTP/1.1" 200 7815751
172.221.0.3 - - [07/Nov/2022:13:53:22 +0000] "GET /mxgraph/css/common.css HTTP/1.1" 200 4325
172.221.0.3 - - [07/Nov/2022:13:53:22 +0000] "GET /js/PostConfig.js HTTP/1.1" 200 252
172.221.0.3 - - [07/Nov/2022:13:53:22 +0000] "GET /resources/dia.txt HTTP/1.1" 200 43499
172.221.0.3 - - [07/Nov/2022:13:53:22 +0000] "GET /favicon.ico HTTP/1.1" 200 15086
172.221.0.3 - - [07/Nov/2022:13:53:22 +0000] "GET /math/startup.js HTTP/1.1" 404 770

Last line reports Error 404 for “GET /math/startup.js HTTP/1.1” 404

Analysis hosting-your-own-copy-of-the-mathjax-components tells that need to move content of es5 folder to <path-to-server-location>/math however it still remained in es5, it can be checked in a recent tag codebase: https://github.com/jgraph/drawio/tree/v20.5.3/src/main/webapp/math/es5

Seems that main application doesn’t use local instances of mathjax from webapp/math folder rather gets it directly from a CDN on the web… Thus there is no such issue on local app or on global server instance.

Workaround Inside a container move all contents from webapp/math/es5/* to upper level webapp/math:

docker exec -it self-contained_drawio_1 mv webapps/draw/math/es5/* webapps/draw/math

Proposed Solution Repeat moving content of es5 folder in jgraph/drawio codebase or if for some reason it is still necessary to keep es5 folder then add es5 content moving command to https://github.com/jgraph/docker-drawio/blob/dev/main/Dockerfile

[m-mohamedin]

Will be fixed in the next release. Thanks

Still not fixed in 20.6.2…

I’ve tried and it works. Can you please send us detailed steps to reproduce

[m-mohamedin]

Will be fixed in the next release. Thanks