don't want insert internal links starting with /

[tomdyqin]

i don't want insert internal links starting with /, may I ask if you can increase the priority of user-defined isUrl options

const customValidateUrl = (editor, url) => {
  if (url.startsWith('/')) return false;
  // ...rest of the original logic
};

const linkPlugin = createLinkPlugin({
  options: {
    isUrl: customValidateUrl,
  },
});

1. Copy '/aaa'
2. Paste on editor
3. Expected to insert text /aaa

Originally posted by @tomdyqin in #4450

[dosubot]

Plate's link plugin currently hardcodes acceptance for internal links starting with / before it checks your custom isUrl function, so you can't block these links using only the isUrl option. This means pasting /aaa will always create a link, even if your custom logic returns false. The correct option for custom validation is isUrl, but its priority is lower than the internal check for / links. To change this behavior, the core plugin code would need to be updated. Reference

To reply, just mention @dosu.

---

^{How did I do? Good | Irrelevant | Incorrect | Verbose | Hallucination | Report 🐛 | Other}    

[zbeyens]

@claude pr this

[claude]

Claude finished @zbeyens's task —— View job • claude/issue-4591-20250828_105922 • Create PR ➔

---

Todo List:

• Analyze the link plugin structure and locate validateUrl
• Modify validateUrl to prioritize custom isUrl function
• Add/update tests for the new behavior
• Build and typecheck the modified package
• Create changeset for this update
• Commit changes and provide PR link

Summary

I've successfully implemented the ability for custom isUrl functions to override internal link validation in the Plate link plugin.

Changes Made:

1. Modified validateUrl logic: Custom isUrl functions can now prevent internal links (starting with /) and anchor links (starting with #) from being automatically linkified
2. Fixed import issues: Updated all imports throughout the link package to use the correct package references
3. Added comprehensive tests: Tests verify that custom validators can override both internal and anchor link behavior
4. Added changeset: Documented this as a minor feature addition

Key Implementation Details:

• The custom isUrl function is now checked for internal and anchor links
• It only overrides if it's not the default isUrl function and explicitly returns false
• This maintains backward compatibility while enabling the requested functionality

Branch: claude/issue-4591-20250828_105922