I try to get a DA metric of some website in my chrome extension. So I am sending an XMLHttpRequest to Moz Links Api in my chrome extension, but it always jumps from readystate 2 to readystate 4 and as a result I'm receiving an empty response (though if I just paste the requested url in the browser, it all works). I've added "https://lsapi.seomoz.com/*" as a permission in my manifest file, so it shouldn't be a problem of cross-origin request. Any idea what I'm doing wrong? Below are the codes from manifest.json and content.js and a printscreen from console. Manifest.json:
{
"name": "My Test Extension",
"version": "1.0",
"description": "Extension for getting DA from Moz Links Api",
"manifest_version": 2,
"key": "inmofflbicpabbgikeicfhdgolglgmca",
"permissions": [
"https://lsapi.seomoz.com/*"
],
"background": {
},
"browser_action": {
"default-title": "Test extension"
},
"content_scripts": [
{
"matches": [
"https://www.google.com/*"
],
"js": ["content.js",
"lib/cryptojs/components/core-min.js",
"lib/cryptojs/components/enc-base64-min.js",
"lib/cryptojs/rollups/hmac-sha1.js"
]
}
]
}
content.js:
window.onload = function() {
function time() {
var timestamp = Math.floor(new Date().getTime() / 1000)
return timestamp;
}
var expires=time()+300;
var AccessID="<myAccessID>";
var baseString= AccessID+"\n"+expires;
var signingKey="<mysecretkey>";
var raw_signature = CryptoJS.HmacSHA1(baseString, signingKey);
var signature = raw_signature.toString(CryptoJS.enc.Base64);
var requestUrl = "https://lsapi.seomoz.com/linkscape/url-metrics/www.pointvisible.com?Cols=
68719476736&AccessID="+AccessID+"&Expires="+expires+"&Signature="+signature;
var MozRequest=new XMLHttpRequest();
MozRequest.open('GET', requestUrl);
MozRequest.send();
MozRequest.onreadystatechange = function(response) {
console.log("readystate "+MozRequest.readyState+" status "+ MozRequest.status);
if (MozRequest.readyState === 4 && MozRequest.status == 200) {
try{
console.log('try readystate 4', response);
console.log(MozRequest.responseType);
console.log(MozRequest.status+':'+MozRequest.statusText);
console.log(MozRequest.response);
var res=JSON.parse(MozRequest.responseText);
console.log(res);
var DA=res["pda"];
console.log(DA);
} catch(e){
console.log(e)
}
}
}
}
printscreen from console:
