diff --git a/ihm_client/Dockerfile b/ihm_client/Dockerfile
index 4b8020b4..57c71f7d 100644
--- a/ihm_client/Dockerfile
+++ b/ihm_client/Dockerfile
@@ -14,8 +14,8 @@ RUN apk update && apk add --no-cache \
 # Copie des fichiers de dépendances
 COPY package*.json ./
 
-# Installation des dépendances
-RUN npm install --omit=dev
+# Installation des dépendances (inclut les devDependencies nécessaires au build)
+RUN npm install
 
 # Copie du code source
 COPY . .
diff --git a/ihm_client/src/services/service.ts b/ihm_client/src/services/service.ts
index 7f3a83af..708c6cb9 100755
--- a/ihm_client/src/services/service.ts
+++ b/ihm_client/src/services/service.ts
@@ -1640,8 +1640,11 @@ export default class Services {
 
   public hexToBlob(hexString: string): Blob {
     const uint8Array = this.hexToUInt8Array(hexString);
-
-    return new Blob([uint8Array.buffer], { type: "application/octet-stream" });
+    // Crée un ArrayBuffer standard et copie les données pour éviter ArrayBufferLike/SharedArrayBuffer
+    const ab = new ArrayBuffer(uint8Array.length);
+    const view = new Uint8Array(ab);
+    view.set(uint8Array);
+    return new Blob([ab], { type: "application/octet-stream" });
   }
 
   public hexToUInt8Array(hexString: string): Uint8Array {