catch network error

src/utils.ts

@@ -41,12 +41,12 @@ const ping =
         Promise.race([
           fetch(url, {
             method: 'HEAD',
-          }).then(({ status }) => (status === 200 ? url : null)),
+          })
+            .then(({ status }) => (status === 200 ? url : null))
+            .catch(() => null),
           new Promise(r => setTimeout(() => r(null), 2000)),
         ]);
 
-const canUseGoogle = ping('https://www.google.com');
-
 export function joinUrls(paths: string[], fileName?: string) {
   if (fileName) {
     return paths.map(path => 'https://' + path + '/' + fileName);
@@ -57,8 +57,5 @@ export const testUrls = async (urls?: string[]) => {
   if (!urls?.length) {
     return null;
   }
-  if (await canUseGoogle) {
-    return urls[0];
-  }
   return promiseAny(urls.map(ping)).catch(() => null);
 };