Function isValidHeaderName

packages/cli/src/util/dev/transforms.ts:198–200

(name: string)

const HEADER_VALUE_RE = /^[-\w:;.,/\\"'?!(){}[\]@<>=+*#$&`|~%^ ]+$/;

function isValidHeaderName(name: string): boolean {
  return name.length > 0 && HEADER_NAME_RE.test(name);
}

function isValidHeaderValue(value: string): boolean {
  return value.length > 0 && HEADER_VALUE_RE.test(value);