Hello Randy,
Thank you for reaching out to Constant Contact API Developer Support, my name is Courtney. My team is here to assist outside software developers with questions about building into Constant Contact's API.
While your question does not directly relate to Constant Contact’s API or Developer Portal, I did some additional research to ensure we could get you the best answer to your inquiry.
Some web pages may not display within iFrames due to security headers set within the page. These are used by the server to tell the browser whether or not the URL being requested can be used inside of an iFrame. In this case, sharing that page is most likely restricted due to our Terms of Use.
Constant Contact® Website and Products Terms and Conditions of Use: https://www.constantcontact.com/legal/terms
Please refer to section 5.3. Restrictions on Use: https://www.constantcontact.com/legal/terms?_ga=2.8004978.1721656419.1626102514-1849400761.1625154005#tc5
If you have any additional questions regarding this, please feel free to contact our Legal Team directly. You can reach them by email at legal@constantcontact.com
Please have a look and let us know if you have any other questions!
Regards, Courtney E. Tier II API Support Specialist
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