Support opening production build from filesystem

build-dist.mjs

@@ -30,3 +30,7 @@ for(const file of ['main-card-data.js','app.js']){
   });
   await writeFile(`dist/assets/js/${file}`,result.code);
 }
+
+const indexPath='dist/index.html';
+const index=await readFile(indexPath,'utf8');
+await writeFile(indexPath,index.replace(/\s+crossorigin(?=\s|>)/g,''));