Writes some response data to the output stream.
You can only call this function after the onstart
event has fired.
Writes some response data to the output stream.
You can only call this function after the onstart
event has fired.
filter.write( data // ArrayBuffer or Uint8Array )
data
Uint8Array
or ArrayBuffer
: array of bytes containing the data to pass to the browser's rendering engine.
None.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
write |
No
|
No
|
57
|
?
|
No
|
No
|
?
|
?
|
57
|
?
|
No
|
?
|
This example uses write()
, to replace "Example" in the first chunk of the response with "WebExtension Example".
function listener(details) { let filter = browser.webRequest.filterResponseData(details.requestId); let decoder = new TextDecoder("utf-8"); let encoder = new TextEncoder(); filter.ondata = event => { let str = decoder.decode(event.data, {stream: true}); // Just change any instance of Example in the HTTP response // to WebExtension Example. str = str.replace(/Example/g, 'WebExtension Example'); filter.write(encoder.encode(str)); filter.disconnect(); } //return {}; // not needed } browser.webRequest.onBeforeRequest.addListener( listener, {urls: ["https://example.com/*"], types: ["main_frame"]}, ["blocking"] );
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https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/webRequest/StreamFilter/write