createIframe()

in lib/websandbox.ts [140:167]

• 24 lines of code
• 5 McCabe index (conditional complexity)

  createIframe() {
    const containerSelector = this.options.frameContainer;
    const container = typeof containerSelector === 'string'
      ? document.querySelector(containerSelector)
      : containerSelector;

    if (!container) {
      throw new Error('Websandbox: Cannot find container for sandbox ' + container);
    }

    const frame = document.createElement('iframe');
    frame.sandbox = `allow-scripts ${this.options.sandboxAdditionalAttributes}`;
    frame.allow = `${this.options.allowAdditionalAttributes}`;
    frame.className = this.options.frameClassName ?? '';
    if (this.options.allowFullScreen) {
      frame.allowFullscreen = true;
    }

    if (this.options.frameSrc) {
      frame.src = this.options.frameSrc;
      container.appendChild(frame);
      return frame;
    }

    frame.setAttribute('srcdoc', this._prepareFrameContent(this.options));
    container.appendChild(frame);
    return frame;
  }