diff --git a/src/polyfills/mime-types.js b/src/polyfills/mime-types.js
new file mode 100644
index 0000000..42b2b95
--- /dev/null
+++ b/src/polyfills/mime-types.js
@@ -0,0 +1,2 @@
+// Stub
+exports.lookup = (file) => {};
\ No newline at end of file