image and heatmap traces jump/flash on Firefox and Safari
Nobody has claimed this yet.
- Dominant language
- JavaScript
- Stars
- 18.3k
- Forks
- 2k
- Avg merge
- 2d 12h
- Merged PRs (30d)
- 28
Description
The new image trace seems to have a flashing/jumping behavior when zoomed in and panning on Firefox and Safari. (Firefox version 69.0, Safari version 13.0.3)
Example from https://plot.ly/python/imshow/

This jumping does not happen on Chrome but I do see it on Firefox/Safari. Not sure if it's related, but in all three browsers, the tooltip also seems to jump to another location when the pan is completed.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the image-trace behavior at https://plot.ly/python/imshow/ in Firefox 69 and Safari 13.0.3 while zooming and panning, then compare it with Chrome and observe the tooltip after panning completes. Done means image and heatmap traces remain stable and the tooltip stays at the correct location across the reported browsers.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript
- Domain
- data-visualization
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100