diff --git a/tests/script/index.html b/tests/script/index.html
index ebd26ccc..f243821c 100644
--- a/tests/script/index.html
+++ b/tests/script/index.html
@@ -58,14 +58,14 @@ <h1 class="title">Script</h1>
         <script type="text/partytown">
           (function () {
             const script = document.createElement('script');
-            jsonp = function (data) {
+            jsonpA = function (data) {
               const elm = document.getElementById('testJSONP');
               elm.textContent = data.mph;
               script.remove();
               elm.className = 'testJSONP';
             };
             script.dataset.testjsonp = true;
-            script.src = './jsonp.js';
+            script.src = './jsonp-a.js';
             document.head.appendChild(script);
           })();
         </script>
@@ -82,11 +82,11 @@ <h1 class="title">Script</h1>
               script.parentElement.removeChild(script);
               elm.className = 'testOnLoad';
             };
-            jsonp = function (data) {
-              elm.textContent = data.mph + 11;
+            jsonpB = function (data) {
+              elm.textContent = data.mph;
             };
             script.dataset.testonload = true;
-            script.src = './jsonp.js';
+            script.src = './jsonp-b.js';
             document.head.appendChild(script);
           })();
         </script>
@@ -103,10 +103,10 @@ <h1 class="title">Script</h1>
               script.parentElement.removeChild(script);
               elm.className = 'testAddEventListenerLoad';
             });
-            jsonp = function (data) {
-              elm.textContent = data.mph - 11;
+            jsonpC = function (data) {
+              elm.textContent = data.mph;
             };
-            script.src = './jsonp.js';
+            script.src = './jsonp-c.js';
             document.head.appendChild(script);
           })();
         </script>
diff --git a/tests/script/jsonp-a.js b/tests/script/jsonp-a.js
new file mode 100644
index 00000000..283396b5
--- /dev/null
+++ b/tests/script/jsonp-a.js
@@ -0,0 +1 @@
+jsonpA({ mph: 88 });
diff --git a/tests/script/jsonp-b.js b/tests/script/jsonp-b.js
new file mode 100644
index 00000000..9315e20d
--- /dev/null
+++ b/tests/script/jsonp-b.js
@@ -0,0 +1 @@
+jsonpB({ mph: 99 });
diff --git a/tests/script/jsonp-c.js b/tests/script/jsonp-c.js
new file mode 100644
index 00000000..42176319
--- /dev/null
+++ b/tests/script/jsonp-c.js
@@ -0,0 +1 @@
+jsonpC({ mph: 77 });
diff --git a/tests/script/jsonp.js b/tests/script/jsonp.js
deleted file mode 100644
index 872e70b8..00000000
--- a/tests/script/jsonp.js
+++ /dev/null
@@ -1 +0,0 @@
-jsonp({ mph: 88 });