diff --git a/src/client/index.ts b/src/client/index.ts
index fbc945b..82fe926 100644
--- a/src/client/index.ts
+++ b/src/client/index.ts
@@ -1,12 +1,13 @@
 import "./location";
+import "./trustedTypes.ts";
+import "./eval.ts";
 import "./storage";
 import "./element.ts";
-import "./eval.ts";
 import "./fetch.ts";
-import "./trustedTypes.ts";
+import "./xmlhttprequest.ts";
 
 declare global {
     interface Window {
         __location: Location;
     }
-}
\ No newline at end of file
+}
diff --git a/src/client/xmlhttprequest.ts b/src/client/xmlhttprequest.ts
new file mode 100644
index 0000000..eaedded
--- /dev/null
+++ b/src/client/xmlhttprequest.ts
@@ -0,0 +1,18 @@
+XMLHttpRequest.prototype.open = new Proxy(XMLHttpRequest.prototype.open, {
+  apply(target, thisArg, argArray) {
+    if (argArray[1]) argArray[1] = self.__scramjet$bundle.rewriters.url.encodeUrl(argArray[1]);
+
+    return Reflect.apply(target, thisArg, argArray);
+  },
+});
+
+XMLHttpRequest.prototype.setRequestHeader = new Proxy(XMLHttpRequest.prototype.setRequestHeader, {
+  apply(target, thisArg, argArray) {
+    let headerObject = Object.fromEntries(argArray);
+    headerObject = self.__scramjet$bundle.rewriters.rewriteHeaders(headerObject);
+
+    argArray = Object.entries(headerObject);
+
+    return Reflect.apply(target, thisArg, argArray);
+  },
+});