diff --git a/web/hwlab-cloud-web/scripts/check.mjs b/web/hwlab-cloud-web/scripts/check.mjs
index 96da5176..950c12da 100644
--- a/web/hwlab-cloud-web/scripts/check.mjs
+++ b/web/hwlab-cloud-web/scripts/check.mjs
@@ -1340,10 +1340,26 @@ function compactLayoutFailure(failure) {
 }
 
 function functionBody(source, functionName) {
-  const match = source.match(new RegExp(`function\\s+${escapeRegExp(functionName)}\\s*\\([^)]*\\)\\s*\\{`, "u"));
-  if (!match) return "";
+  const match = source.match(new RegExp(`(?:async\\s+)?function\\s+${escapeRegExp(functionName)}\\s*\\(`, "u"));
+  if (!match || typeof match.index !== "number") return "";
+  let signatureIndex = match.index + match[0].length - 1;
+  let signatureDepth = 0;
+  let bodyStart = -1;
+  for (let index = signatureIndex; index < source.length; index += 1) {
+    const char = source[index];
+    if (char === "(") signatureDepth += 1;
+    if (char === ")") {
+      signatureDepth -= 1;
+      continue;
+    }
+    if (signatureDepth === 0 && char === "{") {
+      bodyStart = index;
+      break;
+    }
+  }
+  if (bodyStart === -1) return "";
   let depth = 0;
-  for (let index = match.index + match[0].length - 1; index < source.length; index += 1) {
+  for (let index = bodyStart; index < source.length; index += 1) {
     const char = source[index];
     if (char === "{") depth += 1;
     if (char === "}") {