The following JavaScript APIs are available to serverless scripts:

• JavaScript's built-in objects, statements, expressions, and operators
• The service worker fetch event

Interfaces

• Request
• Response
• Headers
• URL
• URLSearchParams
• TextEncoder
• TextDecoder
• ReadableStream
• WritableStream
• TransformStream
• FormData
• Blob

Functions

• fetch()
• setTimeout()
• clearTimeout()
• setInterval()
• clearInterval()