Optionalbase_Optionalbody
Optionalcache
A string indicating how the request will interact with the browser's cache to set request's cache.
Optionalcredentials
A string indicating whether credentials will be sent with the request always, never, or only when sent to a same-origin URL. Sets request's credentials.
Optionalheaders
A Headers object, an object literal, or an array of two-item arrays to set request's headers.
Optionalintegrity
A cryptographic hash of the resource to be fetched by request. Sets request's integrity.
Optionalkeepalive
A boolean to set request's keepalive.
Optionalmethod
A string to set request's method.
Optionalmode
A string to indicate whether the request will use CORS, or will be restricted to same-origin URLs. Sets request's mode.
Optionalpriority
Optionalredirect
A string indicating whether request follows redirects, results in an error upon encountering a redirect, or returns the redirect (in an opaque fashion). Sets request's redirect.
Optionalreferrer
A string whose value is a same-origin URL, "about:client", or the empty string, to set request's referrer.
OptionalreferrerA referrer policy to set request's referrerPolicy.
Optionalreject
Optionalsignal
An AbortSignal to set request's signal.
Optionaltransform
Optionalwindow
Can only be null. Used to disassociate request from any Window.
A BodyInit object or null to set request's body.