diff --git a/src/bg/main.js b/src/bg/main.js
index d589387..7dca693 100644
--- a/src/bg/main.js
+++ b/src/bg/main.js
@@ -309,6 +309,16 @@
       include("/test/run.js");
     },
 
+    async testIC(callbackOrUrl) {
+      await include("xss/InjectionChecker.js");
+      let IC = await XSS.InjectionChecker;
+      let ic = new IC();
+      ic.logEnabled = true;
+      return (typeof callbackOrUrl === "function")
+        ? await callbackOrUrl(ic)
+        : ic.checkUrl(callbackOrUrl);
+    },
+
     async savePolicy() {
       if (this.policy) {
         await Storage.set("sync", {
diff --git a/src/manifest.json b/src/manifest.json
index e228f94..3b4697c 100644
--- a/src/manifest.json
+++ b/src/manifest.json
@@ -51,7 +51,6 @@
       "/nscl/common/Permissions.js",
       "/nscl/common/Policy.js",
       "/nscl/common/locale.js",
-      "/nscl/common/SyntaxChecker.js",
       "/nscl/common/Storage.js",
       "/nscl/common/include.js",
       "/nscl/service/DocStartInjection.js",