Safely inject credentials in HTTP headers with Vercel Sandbox

Safely inject credentials in HTTP headers with Vercel Sandbox

• 2 min read Vercel Sandbox can now automatically inject HTTP headers into outbound requests from sandboxed code. • This keeps API keys and tokens safely outside the sandbox VM bou

Web Development · February 24, 2026 (updated February 25, 2026) · 2 min · 363 words