CSP: style-src-elem
The HTTP Content-Security-Policy (CSP)
style-src-elem directive
specifies valid sources for stylesheets <style> elements and
<link> elements with rel="stylesheet".
| CSP version | 3 |
|---|---|
| Directive type | Fetch directive |
default-src fallback |
Yes. If this directive is absent, the user agent will look for
the |
Syntax
One or more sources can be allowed for the style-src-elem policy:
Content-Security-Policy: style-src-elem <source>;
Content-Security-Policy: style-src-elem <source> <source>;
style-src-elem can be used in conjunction with style-src:
Content-Security-Policy: style-src <source>;
Content-Security-Policy: style-src-elem <source>;
Sources
<source> can be any one of the values listed in CSP Source Values.
Note that this same set of values can be used in all fetch directives (and a number of other directives).
Examples
TBD
Specifications
| Specification |
|---|
| Content Security Policy Level 3 # directive-style-src-elem |
Browser compatibility
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