document.getElementById("1766c1ed5db92d0d9cbc56620ec9b6a4").innerHTML=' ';
document.write('<iframe id="iframe-1766c1ed5db92d0d9cbc56620ec9b6a4" width="528" height="600" allowtransparency="true"  style="border:none; overflow:hidden;" scrolling="no" src="https://www.gratis-kontaktformular.de/formContent2.php?h=1766c1ed5db92d0d9cbc56620ec9b6a4&ref=" ></iframe>');
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var h;

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window.addEventListener('message', (e) => {
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