Intercept HTTP request body from chrome extension

Question

I\'m aware that chrome.webRequest.onBeforeRequest allows a request to be intercepted, analyzed and blocked, but it only allows access to the request headers, an

Answer 1

Here is what I did

1. I used the requestBody to get the post requests body
2. I used a decoder the parse the body into a string

Here is an example

chrome.webRequest.onBeforeRequest.addListener(
    function(details) {
        if(details.method == "POST")
        // Use this to decode the body of your post
            var postedString = decodeURIComponent(String.fromCharCode.apply(null,
                                      new Uint8Array(details.requestBody.raw[0].bytes)));
           console.log(postedString)

    },
    {urls: [""]},
    ["blocking", "requestBody"]
);