import iframeResize from 'iframe-resizer/js/iframeResizer' var iframes = iframeResize({ heightCalculationMethod: 'taggedElement', onInit: onInit }, '[plausible-embed]') function onInit() { var iframe = iframes[0] var styles = iframe.getAttribute('styles') if (styles) { iframe.iFrameResizer.sendMessage({ type: 'load-custom-styles', opts: { styles: styles } }) } }