[BUG] 未与 TM 对齐： DOMPraser 失败时 responseXML 应设为 null 而非 crash

[cyfung1031]

Problem Description

• https://docs.google.com/forms/d/e/1FAIpQLSeAGfm0UUoQbBQnGR1fT8YcXJZvxaSYJTHUY_SqFt295RVVCA/viewform?testing_DOMPraser

// ==UserScript==
// @name         GM_XHR Example
// @grant        GM.xmlHttpRequest
// @match        *://*/*?testing_DOMPraser
// @connect httpbin.org
// ==/UserScript==

(async () => {
  try {
    const response = await GM.xmlHttpRequest({
      method: "GET",
      url: "https://httpbin.org/get",
      headers: {
        "Accept": "application/json"
      },
      onload: (res) => {
          console.log("responseXML", res.responseXML);
        console.log("Status:", res.status);
        console.log("Response:", res.responseText);
      }
    });
  } catch (e) {
    console.error("Request failed", e);
  }
})();

Reproduction Steps

ScriptCat Version

Operating System and Browser Information

Additional Information (Optional)

No response