Passed url=../swagger.json, but the href of the link in UI become ./swagger.json, the first dot gets lost

Q&A (please complete the following information)

• OS: macOS
• Browser: chrome
• Version: 135.0.7049.115
• Method of installation: dist assets
• Swagger-UI version: 5.21.0
• Swagger/OpenAPI version: OpenAPI 3.0

Content & configuration

Example Swagger/OpenAPI definition:

#Does not matter

Swagger-UI configuration options:

//Does not matter

Describe the bug you're encountering

Passing url=../swagger.json, but the link in UI become "ref=./swagger.json", the first dot gets lost!

To reproduce...

Steps to reproduce the behavior:

• Just make the web server serve the ../swagger.json
• In the Swagger UI, input ../swagger.json to the top text input field, then click the "Explore".

Expected behavior

• The link "../swagger.json" is shown, and its href should be "../swagger.json", notes the 2 dots.

Screenshots

Additional context or thoughts

Should be a bug of the sanitizeUrl function.

Start in src/core/utils/url.js at the sanitizeUrl function referenced by the issue. Reproduce the problem by entering ../swagger.json in Swagger UI's top input and selecting Explore, then verify that the displayed link and its href preserve both dots. Done means the relative URL is no longer changed to ./swagger.json.