<script>: type attribute
The type
attribute of the <script>
element indicates the type of script represented by the element: a classic script, a JavaScript module, an import map, or a data block.
Value
The value of this attribute indicates the type of data represented by the script, and will be one of the following:
- Attribute is not set (default), an empty string, or a JavaScript MIME type
-
Indicates that the script is a "classic script", containing JavaScript code. Authors are encouraged to omit the attribute if the script refers to JavaScript code rather than specify a MIME type. JavaScript MIME types are listed in the IANA media types specification.
module
-
This value causes the code to be treated as a JavaScript module. The processing of the script contents is deferred. The
charset
anddefer
attributes have no effect. For information on usingmodule
, see our JavaScript modules guide. Unlike classic scripts, module scripts require the use of the CORS protocol for cross-origin fetching. importmap
-
This value indicates that the body of the element contains an import map. The import map is a JSON object that developers can use to control how the browser resolves module specifiers when importing JavaScript modules
- Any other value
-
The embedded content is treated as a data block, and won't be processed by the browser. Developers must use a valid MIME type that is not a JavaScript MIME type to denote data blocks. All of the other attributes will be ignored, including the
src
attribute.
Note: In earlier browsers, the type identified the scripting language of the embedded or imported (via the src
attribute) code.
Specifications
No specification found
No specification data found for html.elements.script.type
.
Check for problems with this page or contribute a missing spec_url
to mdn/browser-compat-data. Also make sure the specification is included in w3c/browser-specs.
Browser compatibility
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