Method getAuthorScript_

extensions/amp-script/0.1/amp-script.js:397–429

* Query local or fetch remote author script. * * Returns promise that resolves with the script contents or rejected if the * fetch fails or if the script fails CORS checks. * * Returns null if script reference is missing. * * @param {string} debugId An element identifier for err

(debugId)

   * @private
   */
  getAuthorScript_(debugId) {
    const authorUrl = this.element.getAttribute('src');
    if (authorUrl) {
      return this.fetchAuthorScript_(authorUrl, debugId);
    } else {
      const id = this.element.getAttribute('script');
      if (id) {
        const local = this.getAmpDoc().getElementById(id);
        userAssert(
          local,
          '[%s] %s could not find element with #%s.',
          TAG,
          debugId,
          id
        );
        const target = local.getAttribute('target');
        userAssert(
          target === 'amp-script',
          '[%s] script#%s must have target="amp-script".',
          TAG,
          id
        );
        const text = local.textContent;
        if (this.development_ || this.sandboxed_) {
          return Promise.resolve(text);
        } else {
          return this.service_.checkSha384(text, debugId).then(() => text);
        }
      }
    }
    // No [src] or [script].
    return null;
  }

  /**
   * @param {string} authorUrl