web api instance method
Response: formData() method
Available in workers
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
formData()
Parameters
None.
Return value
A Promise that resolves with a FormData object.
Exceptions
AbortErrorDOMException- : 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, or is notapplication/x-www-form-urlencodedormultipart/form-data. - The body cannot be parsed as a
FormDataobject.
- : Thrown for one of the following reasons:
Examples
TBD.
Specifications
SpecificationsStandards references are available on the canonical MDN page.
Browser compatibility
Browser compatibilityCompatibility data is available on the canonical MDN page.