Response: formData() method
The formData() method of the Response interface
takes a Response stream and reads it to completion. It returns a promise
that resolves with a FormData object.
Note: This is mainly relevant to service workers. If a user submits
a form and a service worker intercepts the request, you could for example call
formData() on it to obtain a key-value map, modify some fields, then send
the form onwards to the server (or use it locally).
Syntax
js
formData()
Parameters
None.
Return value
Exceptions
DOMExceptionAbortError-
The request was aborted.
TypeError-
Thrown for one of the following reasons:
- The response body is disturbed or locked.
- There was an error decoding the body content (for example, because the
Content-Encodingheader is incorrect). - The MIME type of the body cannot be determined from the
Content-Typeheaders included in the response. - The body cannot be parsed as a
FormDataobject.
Examples
TBD.
Specifications
| Specification |
|---|
| Fetch Standard # ref-for-dom-body-formdata① |
Browser compatibility
BCD tables only load in the browser