diff --git a/src/ProjectTemplates/Web.ProjectTemplates/content/ComponentsWebAssembly-CSharp/Client/wwwroot/service-worker.published.js b/src/ProjectTemplates/Web.ProjectTemplates/content/ComponentsWebAssembly-CSharp/Client/wwwroot/service-worker.published.js
index 755b7b9449..fb310b28dd 100644
--- a/src/ProjectTemplates/Web.ProjectTemplates/content/ComponentsWebAssembly-CSharp/Client/wwwroot/service-worker.published.js
+++ b/src/ProjectTemplates/Web.ProjectTemplates/content/ComponentsWebAssembly-CSharp/Client/wwwroot/service-worker.published.js
@@ -8,7 +8,7 @@ self.addEventListener('fetch', event => event.respondWith(onFetch(event)));
 
 const cacheNamePrefix = 'offline-cache-';
 const cacheName = `${cacheNamePrefix}${self.assetsManifest.version}`;
-const offlineAssetsInclude = [ /\.dll$/, /\.pdb$/, /\.wasm/, /\.html/, /\.js$/, /\.json$/, /\.css$/, /\.woff$/, /\.png$/, /\.jpe?g$/, /\.gif$/, /\.ico$/ ];
+const offlineAssetsInclude = [ /\.dll$/, /\.pdb$/, /\.wasm/, /\.html/, /\.js$/, /\.json$/, /\.css$/, /\.woff$/, /\.png$/, /\.jpe?g$/, /\.gif$/, /\.ico$/, /\.blat$/, /\.dat$/ ];
 const offlineAssetsExclude = [ /^service-worker\.js$/ ];
 
 async function onInstall(event) {