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).
js
formData()
None.
TBD.
| Specification |
|---|
| Fetch Standard # ref-for-dom-body-formdata① |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
formData |
60 | 79 | 39 | No | 47 | 14.1 | 60 | 60 | 39 | 44 | 14.5 | 8.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/Response/formData