Function unwrapResponse

packages/core/src/metadata/resource_loading.ts:157–173

(
  url: string,
  response: string | {text(): Promise<string>; status?: number},
)

}

async function unwrapResponse(
  url: string,
  response: string | {text(): Promise<string>; status?: number},
): Promise<string> {
  if (typeof response === 'string') {
    return response;
  }

  if (response.status !== undefined && response.status !== 200) {
    throw new RuntimeError(
      RuntimeErrorCode.EXTERNAL_RESOURCE_LOADING_FAILED,
      ngDevMode && `Could not load resource: ${url}. Response status: ${response.status}`,
    );
  }

  return response.text();
}