W3cubDocs

/Web Extensions

webRequest.HttpHeaders

An array of HTTP headers. Each header is represented as an object with two properties: name and either value or binaryValue.

Type

An array of objects. Each object has the following properties:

name
string. Name of the HTTP header.
valueOptional
string. Value of the HTTP header if it can be represented by UTF-8. Either this property or binaryValue must be present.
binaryValueOptional
array of integer. Value of the HTTP header if it cannot be represented by UTF-8, represented as bytes (0..255). Either this property or value must be present.

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
HttpHeaders
Yes
14
45
?
Yes
14
?
?
48
?
?
?

Note: This API is based on Chromium's chrome.webRequest API. This documentation is derived from web_request.json in the Chromium code.

Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.

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https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/webRequest/HttpHeaders