Function headerValueNormalize

deps/undici/src/lib/web/fetch/headers.js:29–39

* @see https://fetch.spec.whatwg.org/#concept-header-value-normalize * @param {string} potentialValue * @returns {string}

(potentialValue)

 * @returns {string}
 */
function headerValueNormalize (potentialValue) {
  //  To normalize a byte sequence potentialValue, remove
  //  any leading and trailing HTTP whitespace bytes from
  //  potentialValue.
  let i = 0; let j = potentialValue.length

  while (j > i && isHTTPWhiteSpaceCharCode(potentialValue.charCodeAt(j - 1))) --j
  while (j > i && isHTTPWhiteSpaceCharCode(potentialValue.charCodeAt(i))) ++i

  return i === 0 && j === potentialValue.length ? potentialValue : potentialValue.substring(i, j)
}

/**
 * @param {Headers} headers