fix: enhance URL handling in refreshAttachmentURL and improve error handling in DataResolver

src/client/Client.js

@@ -522,7 +522,14 @@ class Client extends BaseClient {
    * @param {string[]} urls Discord CDN URLs
    * @returns {Promise<Array<{ original: string, refreshed: string }>>}
    */
-  async refreshAttachmentURL(urls) {
+  async refreshAttachmentURL(urls = []) {
+    // Clean up the URLs
+    urls = urls.map(url => {
+      const urlObject = new URL(url);
+      // Clean query
+      urlObject.search = '';
+      return urlObject.toString();
+    });
     const data = await this.api.attachments('refresh-urls').post({
       data: { attachment_urls: urls },
     });

src/util/DataResolver.js

@@ -111,7 +111,8 @@ class DataResolver extends null {
     if (typeof resource === 'string') {
       if (/^https?:\/\//.test(resource)) {
         const res = await fetch(resource);
-        return res.body;
+        if (res.ok) return res.body;
+        else throw new DiscordError('FILE_NOT_FOUND', resource);
       }
 
       return new Promise((resolve, reject) => {