`check/referer` gives confusing results due to more default restrictive referer policies in browsers
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- Dominant language
- Java
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Description
The W3C validators for html and css are no longer recognizing the correct referrer url from my website (they used to). Possibly, this is because there is a tilde (~) in the url. In particular, (http://users.ugent.be/~jaschmid/) shows the validation for (http://users.ugent.be/) with the recommended code <a href="http://validator.w3.org/check?uri=referer"> (html) and <a href="http://jigsaw.w3.org/css-validator/check/referer"> (css). I am able to get the correct validation with <a href="http://validator.w3.org/check?uri=users.ugent.be/~jaschmid/"> and <a href="http://jigsaw.w3.org/css-validator/validator?uri=users.ugent.be/~jaschmid/">, however.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
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Research direction
Reproduce the behavior using the HTML and CSS validator URLs in the report, comparing the referer-based links with the explicit URI links. Inspect how the validator endpoints process referrers under current browser policies; done means both recommended links identify the requesting page correctly, including the reported tilde URL.
Written by the indexing model from the issue text.
Assessment
- Domain
- web-dev
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100