Function readableStreamClose

lib/web/fetch/util.js:968–978

* @param {ReadableStreamController } controller

(controller)

 * @param {ReadableStreamController<Uint8Array>} controller
 */
function readableStreamClose (controller) {
  try {
    controller.close()
    controller.byobRequest?.respond(0)
  } catch (err) {
    // TODO: add comment explaining why this error occurs.
    if (!err.message.includes('Controller is already closed') && !err.message.includes('ReadableStream is already closed')) {
      throw err
    }
  }
}

/**
 * @see https://streams.spec.whatwg.org/#readablestreamdefaultreader-read-all-bytes