diff --git a/src/fonts.js b/src/fonts.js
index b12707eb5..f8ae7de4c 100644
--- a/src/fonts.js
+++ b/src/fonts.js
@@ -573,7 +573,8 @@ var FontLoader = {
       src += '  window.onload = function fontLoaderOnload() {\n';
       src += '    parent.postMessage(JSON.stringify(fontNames), "*");\n';
       src += '  }';
-      src += '</script></head><body>';
+      // Hack so the end script tag isn't counted if this is inline JS.
+      src += '</scr' + 'ipt></head><body>';
       for (var i = 0, ii = names.length; i < ii; ++i) {
         src += '<p style="font-family:\'' + names[i] + '\'">Hi</p>';
       }
