The delete()
method of the Headers
interface deletes a header from the current Headers
object.
This method throws a TypeError
for the following reasons:
- The value of the name parameter is not the name of an HTTP header.
- The value of Guard is
immutable
.
For security reasons, some headers can only be controller by the user agent. These headers include the forbidden header names and forbidden response header names.
Syntax
myHeaders.delete(name);
Parameters
name
- The name of the HTTP header you want to delete from the
Headers
object.
Returns
Void.
Example
Creating an empty Headers
object is simple:
var myHeaders = new Headers(); // Currently empty
You could add a header to this using Headers.append
:
myHeaders.append('Content-Type', 'image/jpeg'); myHeaders.get('Content-Type'); // Returns 'image/jpeg'
You can then delete it again:
myHeaders.delete('Content-Type'); myHeaders.get('Content-Type'); // Returns null, as it has been deleted
Specifications
Specification | Status | Comment |
---|---|---|
Fetch The definition of 'delete()' in that specification. |
Living Standard |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
delete | Chrome
Full support
42
| Edge Full support 14 | Firefox
Full support
39
| IE No support No | Opera
Full support
29
| Safari Full support 10.1 | WebView Android Full support 42 | Chrome Android
Full support
42
| Firefox Android No support No | Opera Android
Full support
29
| Safari iOS No support No | Samsung Internet Android Full support 4.0 |
Legend
- Full support
- Full support
- No support
- No support
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.
- User must explicitly enable this feature.
- User must explicitly enable this feature.