The formData()
method of the Body
mixin 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
response.formData() .then(function(formdata) { // do something with your formdata });
Parameters
None.
Return value
A Promise
that resolves with a FormData
object.
Example
TBD.
Specifications
Specification | Status | Comment |
---|---|---|
Fetch The definition of 'formData()' in that specification. |
Living Standard |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|
Basic support |
60 |
39 (39) [1] | No support |
47 |
No support |
Feature | Android Webview | Chrome for Android | Firefox Mobile (Gecko) | Firefox OS (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|---|
Basic support |
60 |
60 |
No support | No support | No support |
47 |
No support |
[1] Behind a preference starting with version 34.