diff --git a/src-web/components/responseViewers/AudioViewer.tsx b/src-web/components/responseViewers/AudioViewer.tsx
index a38c7d7a..145ff3fe 100644
--- a/src-web/components/responseViewers/AudioViewer.tsx
+++ b/src-web/components/responseViewers/AudioViewer.tsx
@@ -13,7 +13,7 @@ export function AudioViewer({ bodyPath, data }: Props) {
     if (bodyPath) {
       setSrc(convertFileSrc(bodyPath));
     } else if (data) {
-      const blob = new Blob([data], { type: 'audio/mpeg' });
+      const blob = new Blob([new Uint8Array(data)], { type: 'audio/mpeg' });
       const url = URL.createObjectURL(blob);
       setSrc(url);
       return () => URL.revokeObjectURL(url);
diff --git a/src-web/components/responseViewers/VideoViewer.tsx b/src-web/components/responseViewers/VideoViewer.tsx
index 0bad1975..681a45b8 100644
--- a/src-web/components/responseViewers/VideoViewer.tsx
+++ b/src-web/components/responseViewers/VideoViewer.tsx
@@ -13,7 +13,7 @@ export function VideoViewer({ bodyPath, data }: Props) {
     if (bodyPath) {
       setSrc(convertFileSrc(bodyPath));
     } else if (data) {
-      const blob = new Blob([data], { type: 'video/mp4' });
+      const blob = new Blob([new Uint8Array(data)], { type: 'video/mp4' });
       const url = URL.createObjectURL(blob);
       setSrc(url);
       return () => URL.revokeObjectURL(url);