Troubleshoot frontend workers

What you see	What to check
403 Forbidden on create or upload	Use an organization owner or admin, or another cloud user with access to the site; see Security and access
Missing index.html	Zip the build output folder; see Archives and deployment
Rejected for .env	Remove env files from the archive root
File too large	Stay under 10 MiB—Archive limits
Bad zip or tar	Re-export; confirm extension matches content
Can't change the slug	Create a new worker with the slug you want