Drag element into the iframe sortable elements the clone helper offset position issue.
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- Dominant language
- JavaScript
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Description
I used the 1.13.1, I have another issue, when drag the element into the iframe and the sortable elements, the cloned element offset changed, but end sortable, the offset works again.

Anybody can help figure out the root cause? Thanks.
BTW, when start the drag operation, the drag not smoothly and feel some lags.
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 drag from the issue’s GIF and compare clone positioning while entering an iframe sortable area with its position after sorting ends. Trace the sortable drag and clone offset handling to identify where the iframe changes the offset. Done means the clone stays correctly positioned during the drag and the reported lag is addressed without breaking normal sortable behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript, jquery
- Domain
- frontend
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100