Content-Security-Policy: media-src directive

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since August 2016.

The HTTP Content-Security-Policy (CSP) media-src directive specifies valid sources for loading media using the and elements.

CSP version	1
Directive type	Fetch directive
`default-src` fallback	Yes. If this directive is absent, the user agent will look for the `default-src` directive.

Syntax

http

Content-Security-Policy: media-src 'none';
Content-Security-Policy: media-src ;

This directive may have one of the following values:

'none'

No resources of this type may be loaded. The single quotes are mandatory.

A space-separated list of source expression values. Resources of this type may be loaded if they match any of the given source expressions. For this directive, the following source expression values are applicable:

'self'

Examples

Violation cases

Given this CSP header:

http

Content-Security-Policy: media-src https://example.com/

The following , and elements are blocked and won't load:

html

Specifications

Specification
Content Security Policy Level 3 # directive-media-src