chrome.webRequest.onBeforeRequest.addListener

[Marcus Stricker]

Hello

i came from firebird there it works fine.

Now in chrome it does not work

whats wrong ?

function listener(details) {

  var tmp = "";

  if (details.url.substring(0,42) == 'https://myurl/json?') {

    var filter = chrome.webRequest(details.requestId); 

    var decoder = new TextDecoder("utf-8");

    var encoder = new TextEncoder();

    filter.ondata = event => {

      var str = decoder.decode(event.data, {stream: true});

      console.log('part ' + str);

      filter.write(encoder.encode(str));

      filter.onstop = event => {

        console.log('komplete ' + tmp);

        filter.disconnect();

      };

      tmp = tmp + str;

    };

  };

  return {};

};

chrome.webRequest.onBeforeRequest.addListener(

  listener,

  {urls: ["<all_urls>"], types: ["xmlhttprequest"]},

  ["blocking"]

);

Thanks br marcus

[Marcus Stricker]

sorry the error is chrome.webRequest is not a function

[Marcus Stricker]

can i gife more informaton for an answer 

[ilyaigpetrov]

> var filter = chrome.webRequest(details.requestId); 

Please, show me a documentation or an example where this usage of chrome.webRequest is described. I've never seen such usage before.

[Marcus Stricker]

it stand no where ... it is my idea because it works in firefox fine. 

i seach for the chrome version to read the result from a page ..

thanks br caddy

[Simeon Vincent]

I don't see mention of this usage pattern in Mozilla's webRequest docs either. The closest thing I can find is browser.webRequest.filterResponseData, which is a Firefox-only construct. Chrome does not currently allow extensions to modify response bodies (feature request) and it's unlikely we'll add this as we're moving to another network request modification API: declarativeNetRequest.

If you want to transform the response body of a request, I think your best bet may be to implement that in a proxy server.

Cheers,

Simeon - @dotproto

Chrome Extensions DevRel

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