SEO guide
CORS error when downloading video
Understand CORS errors — browser security, job CDN delivery, and fixes on PasteGrab.
SEO guide
Understand CORS errors — browser security, job CDN delivery, and fixes on PasteGrab.
Overview
CORS (Cross-Origin Resource Sharing) is a browser security model. PasteGrab processes videos server-side — you should not need to fetch arbitrary video URLs from JavaScript in your browser.
If you see CORS errors in the console on PasteGrab, they often come from analytics or third-party scripts — not the core download flow. The actual file saves from our job download link.
Developers embedding PasteGrab should use our link workflow, not hotlinking host CDN URLs.
1
Public link required
5
Format presets
Free
Core downloads
How it works
Save from completed job page — not raw host URL.
If download completes, error may be benign.
Test clean profile.
Include browser and job ID.
Benefits
Does not block PasteGrab job downloads.
Expected — hosts block cross-origin.
Contact support — may be CDN config issue.
Features
See /learn/how-to-choose-download-quality for preset advice.
Compare MP4, MP3, and WebM in our format guides.
Use /download/{platform} for host-specific FAQs.
Output
Format mismatches cause many perceived failures. Switch presets before re-previewing the link.
Best quality for combined audio/video. MP3 when you only need sound. 720p on slow connections.
| Format | Best for |
|---|---|
| Best quality | Highest streams from the public page. |
| MP4 | Standard video output. |
| MP3 | Audio-only when video track fails. |
| 720p | Smaller files on mobile networks. |
| Smallest file | Compact reference downloads. |
Devices
Test in Chrome or Safari incognito with extensions disabled.
On mobile, confirm downloads are allowed in browser site settings.
Disable ad blockers temporarily on PasteGrab.
Use Share → Copy link from the source app.
Same workflow as phone — paste in browser.
Support
Does not block PasteGrab job downloads.
Expected — hosts block cross-origin.
Contact support — may be CDN config issue.
Use PasteGrab API flow — not direct CDN.
FAQ
Tools
Free link-based tools that complement downloader workflows.
Related
If your next link is not from CORS error when downloading video, try these supported platforms.
Learn
Educational guides on formats, quality, codecs, and audio for download workflows.