Variable requestHead

requestHead: (__namedParameters: Request) => Promise<HeadResponse>

Type Declaration

- (__namedParameters: Request): Promise<HeadResponse>
- Sends a HEAD request, falling back to simulation when the server does not support HEAD. Tries, in order:
  1. A standard HEAD request via fetch().
  2. A Range GET to retrieve the first FILE_TYPE_MAGIC_NUMBER_SIZE bytes (magic-number file header).
  3. A plain GET that reads the first FILE_TYPE_MAGIC_NUMBER_SIZE bytes then cancels the body stream.
  Parameters
  - __namedParameters: Request
  Returns Promise<HeadResponse>