uiwjs / uiwjs/react-codemirror
Code Editor becomes unresponsive when 'value' prop is not empty
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- Dominant language
- TypeScript
- Stars
- 2.3k
- Forks
- 161
- PR merge metrics
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Description
If 'value' prop is defined for the codemirror then following bugs occur:
- sometimes we cannot use caret navigation for first word of code editor
- if we delete the entire line then add just single word then editor becomes unresponsive... after that it either removes the word after like 1 min or throws the following error:
IndexSizeError
Failed to execute 'collapse' on 'Selection': The offset 4 is larger than the node's length (0).
▼ 6 stack frames were expanded.
at eval (https://slvju.csb.app/node_modules/
codemirror/view/dist/index.js:2520:18
at DOMObserver.ignore (https://slvju.csb.app/node_modules/
codemirror/view/dist/index.js:5690:14
at DocView.updateSelection (https://slvju.csb.app/node_modules/
codemirror/view/dist/index.js:2504:26
at EditorView.update (https://slvju.csb.app/node_modules/
codemirror/view/dist/index.js:6008:20
at DOMObserver.flush (https://slvju.csb.app/node_modules/
codemirror/view/dist/index.js:5797:50
at MutationObserver.eval (https://slvju.csb.app/node_modules/
codemirror/view/dist/index.js:5561:263
https://github.com/user-attachments/assets/82ebf7a9-32f0-4afc-a175-ceb71f4496e2
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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 with the reproduction linked in the issue and inspect the reported CodeMirror selection stack trace. Reproduce the caret-navigation and line-editing steps with a non-empty value prop; done means the editor remains responsive and no IndexSizeError occurs.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- react, typescript
- Domain
- frontend
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100