diff --git a/main.user.js b/main.user.js
index 24f6be3..a0e402f 100644
--- a/main.user.js
+++ b/main.user.js
@@ -27,7 +27,7 @@ window.addEventListener("keydown", event => {
         const oldAwnsersURL = GM_getValue(URL_STORAGE_KEY);
         let newAwnsersURL = prompt("Please input the answer url (itexamanswers.net)", oldAwnsersURL);
         GM_setValue(URL_STORAGE_KEY, newAwnsersURL);
-        fetchData(newAwnsersURL);
+        awnserData = await window.fetchAwnsers(newAwnsersURL);
         break;
 
     case "n":
@@ -100,78 +100,4 @@ function matchAwnser(textA, textB) {
     textA = textA.replace(replaceRegex, "");
     textB = textB.replace(replaceRegex, "");
     return (textA === textB);
-}
-
-function fetchData(awnserURL = ""){
-    GM_xmlhttpRequest({
-      method: "GET",
-      url: awnserURL,
-      headers: {
-        "Content-Type": "text/html"
-      },
-      onload: function(response) {
-        awnserImgs = new Map();
-        const results = [];
-        const parser = new DOMParser();
-        const virtDom = parser.parseFromString(response.responseText, "text/html");
-
-        let answersDom = virtDom.querySelector(".pf-content");
-        if (!answersDom) {
-          answersDom = virtDom.querySelector(".thecontent");
-        }
-
-        let index = -1;
-        for (let childDom of answersDom.children) {
-            index++;
-
-            if (childDom.tagName === "P" || childDom.tagName === "STRONG" ) {
-
-                // maybe a question question
-                let innerDom = childDom.querySelector("strong");
-                if (innerDom === null) {
-                  if(!childDom.textContent){
-                    continue;
-                  }
-                  innerDom = childDom;
-                };
-
-                const textContent = innerDom.textContent.trim();
-                const matches = textContent.match(/^[0-9]+\. (.*)$/);
-                if (matches !== null) {
-                    const questionText = matches[1];
-
-                    // most likely a question
-                    let nextChild = answersDom.children[index + 1];
-
-                    if (nextChild.tagName === "P"){
-                      nextChild = answersDom.children[index + 2];
-                    };
-
-                    if (nextChild === null) continue;
-
-                    if (nextChild.tagName === "UL") {
-                        // most likely the awnser
-                        const answers = [];
-                        for (let answerDom of nextChild.querySelectorAll("strong")) {
-                            let answerText = answerDom.textContent.trim();
-                            if (answerText.endsWith("*")) {
-                                answerText = answerText.substring(0, answerText.length - 1);
-                            }
-                            answers.push(answerText);
-                        }
-
-                        results.push({
-                            question: questionText,
-                            answers: answers
-                        });
-                    }
-                }
-
-            }
-        }
-        awnserData = results;
-        GM_log(results);
-        GM_log(awnserImgs);
-      }
-    });
 }
\ No newline at end of file