[5.x]: Crop tool is laggy in Firefox browser
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bug
- Dominant language
- PHP
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Description
What happened?
Description
There is a difference in the performance of the cropping tool between browsers.
Steps to reproduce
- Open the Image Editor for an image asset in both Chrome and Firefox
- Go to the Crop tab and resize the crop rectangle so it can be moved around inside the image canvas
- Drag the crop rectangle around the image
Expected behavior
Smooth movement regardless of browser
Actual behavior
In Chrome, the crop movement is smooth. In Firefox, the drag is laggy and sometimes requires multiple drag and drops to achieve the same placement as in Chrome.
Craft CMS version
5.4.8
PHP version
No response
Operating system and version
No response
Database type and version
No response
Image driver and version
No response
Installed plugins and versions
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 crop-rectangle dragging steps in Firefox and Chrome using Craft CMS 5.4.8, then identify the Image Editor crop implementation involved. Done means crop movement is comparably smooth in Firefox and Chrome, with the reported repeated drag-and-drop behavior no longer occurring.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- php
- Domain
- frontend
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 38/100