CSP: plugin-types
CSP: plugin-types
Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.
The HTTP Content-Security-Policy (CSP) plugin-types directive restricts the set of plugins that can be embedded into a document by limiting the types of resources which can be loaded.
Instantiation of an <embed>, <object> or <applet> element will fail if:
- the element to load does not declare a valid MIME type,
- the declared type does not match one of specified types in the
plugin-typesdirective, - the fetched resource does not match the declared type.
| CSP version | 2 |
|---|---|
| Directive type | Document directive |
default-src fallback |
No. Not setting this allows anything. |
Syntax
One or more MIME types can be set for the plugin-types policy:
Content-Security-Policy: plugin-types <type>/<subtype>; Content-Security-Policy: plugin-types <type>/<subtype> <type>/<subtype>;
- <type>/<subtype>
-
A valid MIME type.
Examples
Disallowing plugins
To disallow all plugins, the object-src directive should be set to 'none' which will disallow plugins. The plugin-types directive is only used if you are allowing plugins with object-src at all.
<meta http-equiv="Content-Security-Policy" content="object-src 'none'">
Allowing Flash content
The content security policy
Content-Security-Policy: plugin-types application/x-shockwave-flash
will allow to load flash objects:
<object data="https://example.com/flash" type="application/x-shockwave-flash"></object>
Allowing Java applets
To load an <applet> you must specify application/x-java-applet:
Content-Security-Policy: plugin-types application/x-java-applet
Specifications
Not part of any current specification. Used to be defined in CSP 2.
Browser compatibility
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
plugin-types |
40-90
|
15-90
|
No
|
No
|
27-76
|
10
|
Yes-90
|
Yes-90
|
No
|
?
|
9.3
|
Yes-15.0
|
See also
© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/plugin-types
