Shadow DOM issues



When we integrate DHTMLX Gantt with Shadow DOM facing below issues.

  1. Dependency lines creation is not working
  2. Keyboard navigation is not working
  3. Column resize markers are not working

You can find the live demo(only demo purpose using the DHTMLX libs in the example) at




Hello Dastagiri,
I forwarded the information about the issues with the Shadow DOM to the dev team. They need time to investigate why it happens. Probably, it will take at least 2 weeks. But as soon as I get the response from them, I will tell you about the results and provide a build or workarounds if the dev team includes that.


Tooltips are not working with Shadow DOM


Hello Dastagiri,
Thank you for the clarification. I forwarded that information to the dev team. Unfortunately, they have not yet completed the investigation of the issue, but don’t worry, we didn’t forget about you.

  1. Dependency lines creation is not working

Just uncomment


Has the issue, with tooltips not working on Shadow DOM, been addressed.

I get the same problem. [Clone of dastagirireddy example].


Hello David,
The issue has not yet been resolved. But I reminded the dev team about that bug. They will fix it in the future, but I cannot give you any ETA.