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/* -*- Mode: IDL; tab-width: 1; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at
* The origin of this IDL file is
typedef (Request or UTF8String) RequestInfo;
typedef unsigned long nsContentPolicyType;
interface Request {
* Note that Requests created from system principal (ie "privileged"/chrome)
* code will default to omitting credentials. You can override this behaviour
* using the ``credentials`` member on the ``init`` dictionary.
constructor(RequestInfo input, optional RequestInit init = {});
readonly attribute ByteString method;
readonly attribute UTF8String url;
[SameObject, BinaryName="headers_"] readonly attribute Headers headers;
readonly attribute RequestDestination destination;
readonly attribute UTF8String referrer;
readonly attribute ReferrerPolicy referrerPolicy;
readonly attribute RequestMode mode;
readonly attribute RequestCredentials credentials;
readonly attribute RequestCache cache;
readonly attribute RequestRedirect redirect;
readonly attribute DOMString integrity;
readonly attribute boolean keepalive;
// If a main-thread fetch() promise rejects, the error passed will be a
// nsresult code.
readonly attribute boolean mozErrors;
readonly attribute AbortSignal signal;
NewObject] Request clone();
// Bug 1124638 - Allow chrome callers to set the context.
undefined overrideContentPolicyType(nsContentPolicyType context);
Request includes Body;
dictionary RequestInit {
ByteString method;
HeadersInit headers;
BodyInit? body;
UTF8String referrer;
ReferrerPolicy referrerPolicy;
RequestMode mode;
* If not set, defaults to "same-origin", except for system principal (chrome)
* requests where the default is "omit".
RequestCredentials credentials;
RequestCache cache;
RequestRedirect redirect;
DOMString integrity;
boolean keepalive;
boolean mozErrors;
AbortSignal? signal;
RequestPriority priority;
ObserverCallback observe;
enum RequestDestination {
"audio", "audioworklet", "document", "embed", "font", "frame", "iframe",
"image", "manifest", "object", "paintworklet", "report", "script",
"sharedworker", "style", "track", "video", "worker", "xslt"
enum RequestMode { "same-origin", "no-cors", "cors", "navigate" };
enum RequestCredentials { "omit", "same-origin", "include" };
enum RequestCache { "default", "no-store", "reload", "no-cache", "force-cache", "only-if-cached" };
enum RequestRedirect { "follow", "error", "manual" };
enum RequestPriority { "high" , "low" , "auto" };