diff --git a/src/runtime/background/utils.ts b/src/runtime/background/utils.ts
index 149b7ec2..e8a3af13 100644
--- a/src/runtime/background/utils.ts
+++ b/src/runtime/background/utils.ts
@@ -388,7 +388,7 @@ export async function dealXhr(
         LoggerCore.getLogger(Logger.E(e)).error("GM XHR response error");
       }
       try {
-        respond.responseText = xhr.responseText;
+        respond.responseText = xhr.responseText || undefined;
       } catch (e) {
         LoggerCore.getLogger(Logger.E(e)).error("GM XHR getResponseText error");
       }
diff --git a/src/runtime/content/exec_script.test.ts b/src/runtime/content/exec_script.test.ts
index 3fd7feea..07067039 100644
--- a/src/runtime/content/exec_script.test.ts
+++ b/src/runtime/content/exec_script.test.ts
@@ -97,4 +97,12 @@ describe("sandbox", () => {
     const ret = sandboxExec.exec();
     expect(ret).toEqual("ok3");
   });
+
+  // 沉浸式翻译, 常量值被改变
+  it("NodeFilter #214", () => {
+    scriptRes2.code = `return NodeFilter.FILTER_REJECT;`;
+    sandboxExec.scriptFunc = compileScript(compileScriptCode(scriptRes2));
+    const ret = sandboxExec.exec();
+    expect(ret).toEqual(2);
+  });
 });
diff --git a/src/runtime/content/utils.test.ts b/src/runtime/content/utils.test.ts
index 1b09e8a1..7c52f941 100644
--- a/src/runtime/content/utils.test.ts
+++ b/src/runtime/content/utils.test.ts
@@ -41,7 +41,6 @@ describe("proxy context", () => {
 });
 
 describe("兼容问题", () => {
-  console.log("ok");
   const _this = proxyContext({}, {});
   // https://github.com/xcanwin/KeepChatGPT 环境隔离得不够干净导致的
   it("Uncaught TypeError: Illegal invocation #189", () => {
diff --git a/src/runtime/content/utils.ts b/src/runtime/content/utils.ts
index a7f4790a..eade0a00 100644
--- a/src/runtime/content/utils.ts
+++ b/src/runtime/content/utils.ts
@@ -123,6 +123,7 @@ export const init = new Map<string, boolean>();
 
 // 需要用到全局的
 export const unscopables: { [key: string]: boolean } = {
+  NodeFilter: true,
   RegExp: true,
 };