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CDATA Escapes: Difference between revisions
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* It should be possible to have <!-- near the start of a script or style element without having a matching --> and still the trailing part of the page shouldn't get eaten up into the script or style element. | * It should be possible to have <!-- near the start of a script or style element without having a matching --> and still the trailing part of the page shouldn't get eaten up into the script or style element. | ||
* Pages authored naively for HTML5-parsing-enabled UAs shouldn't be XSS risks in legacy UAs. | * Pages authored naively for HTML5-parsing-enabled UAs shouldn't be XSS risks in legacy UAs. | ||
* When the author uses comment-like syntax in the fallback markup in iframe, noembed or noframes, the comment-like syntax should span the same character run that it would if it were parsed as markup. | |||
Revision as of 11:01, 12 August 2009
Requirements
Hard Requirements
- It must be possible to have the string "</script>" in a string literal in inline JavaScript without having to use JS-level escapes. (This possibility may be limited to scripts that use the "Hide from old browsers" pattern.)
- It must be possible to have "" in string literals in inline JavaScript without having to use JS-level escapes.
- Must not rewind and reparse with different rules.
Medium Requirements
- It should be possible to have the string and still the trailing part of the page shouldn't get eaten up into the script or style element.
- Pages authored naively for HTML5-parsing-enabled UAs shouldn't be XSS risks in legacy UAs.
- When the author uses comment-like syntax in the fallback markup in iframe, noembed or noframes, the comment-like syntax should span the same character run that it would if it were parsed as markup.