Add more fetch-retry logic

puppeteer/load-puppeteer.js

@@ -97,16 +97,22 @@ function crcMemory(wasm_memory){
 // Fetch retry function to help chromium fetch the wasm file
 // https://dev.to/ycmjason/javascript-fetch-retry-upon-failure-3p6g
 const fetch_retry = async (url, n) => {
-    let response = await fetch(url);
-    if(!response.ok) {
-      if (n === 1) {
-        throw Error("" + response.status + ": " + response.statusText);
-      } else {
-        return await fetch_retry(url, n - 1);
-      }
-    } else {
-      return response
+  let response;
+  try {
+    response = await fetch(url);
+  } catch(err) {
+    if (n === 1) {
+      throw err;
     }
+    return await fetch_retry(url, n - 1);
+  }
+  if(!response.ok) {
+    if (n === 1) {
+      throw Error("" + response.status + ": " + response.statusText);
+    } 
+    return await fetch_retry(url, n - 1);
+  } 
+  return response;
 };