diff --git a/src/runtime/javascript/test-web.html b/src/runtime/javascript/test-web.html
index 65a21e377..85e63ef07 100644
--- a/src/runtime/javascript/test-web.html
+++ b/src/runtime/javascript/test-web.html
@@ -5,7 +5,7 @@
-
+
diff --git a/src/runtime/javascript/test-web.js b/src/runtime/javascript/test-web.js
index 2e4d3e87f..cec5ce991 100644
--- a/src/runtime/javascript/test-web.js
+++ b/src/runtime/javascript/test-web.js
@@ -5,7 +5,7 @@ Module.onRuntimeInitialized = () => {
.then((response) => response.arrayBuffer())
.then((data) => {
const pgfPathFS = '/tmp/Foods.pgf';
- Module.FS.writeFile(pgfPathFS, new DataView(data));
+ Module.FS.writeFile(pgfPathFS, new Uint8Array(data));
// Read PGF
const pgf = JSPGF.readPGF(pgfPathFS);