Function getHeader

getHeader(
headers: undefined | HeadersInit,
headerName: string,
): string | undefined
Return the header value from the headers object. Return undefined if the value can't be found.
Parameters
- headers: undefined | HeadersInit
  The headers object.
- headerName: string
  The headers name to look for.
Returns string | undefined
The header value as a string or undefined if it can't be found.
- Defined in src/util/http.ts:284