---

title: 100 Continue

slug: Web/HTTP/Status/100

page-type: http-status-code

browser-compat: http.status.100

---

{{HTTPSidebar}}

The HTTP **`100 Continue`** informational status response code

indicates that everything so far is OK and that the client should continue with the

request or ignore it if it is already finished.

To have a server check the request's headers, a client must send

{{HTTPHeader("Expect")}}`: 100-continue` as a header in its initial request

and receive a `100 Continue` status code in response before sending the body.

## Status

## Specifications

## Browser compatibility

## See also