Function modify

packages/platform/src/Headers.ts:208–221

(key: string | RegExp)

>(2, (self, key) => {
  const out = make(self)
  const modify = (key: string | RegExp) => {
    if (typeof key === "string") {
      const k = key.toLowerCase()
      if (k in self) {
        delete out[k]
      }
    } else {
      for (const name in self) {
        if (key.test(name)) {
          delete out[name]
        }
      }
    }
  }
  if (Array.isArray(key)) {
    for (let i = 0; i < key.length; i++) {
      modify(key[i])