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URL schemes
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Licensing: this page is under CC0, not the MIT License.
about: URLs
about: URLs server as identifier, potentially with an associated resource. The identifier is given in the URL's scheme data.
| Identifier | Resource | Notes |
|---|---|---|
| "blank" | A resource whose Content-Type is text/html;charset=utf-8 and entity body is the empty string. | |
| "invalid" | - | Used to represent a network error. |
| "legacy-compat" | - | Used in HTML for XSLT serializers. |
| "srcdoc" | - | Used in HTML for its <iframe srcdoc> feature. |
| "unicorn" | A resource whose Content-Type is image/svg+xml and entity body is the contents of unicorn.svg. | Unicorn! |
To obtain a resource from an about: URL, run these steps:
- If URL's scheme data is not the literal string "about" or "invalid", return a network error. (URL's query is simply not taken into account and can be anything.)
- Return the resource corresponding to the identifier as listed in the table above, with HTTP status code 200 and HTTP status text "OK".
See also The "about" URI Scheme and "about" URI Tokens which this wiki page obsoletes.
Others
- javascript:
- ws: & wss:
- See Wikipedia
- See IANA