How To Create an iFrame in SquareSpace Using A Code Block?

It is because that site does not allow frames. The x-frame-options is set to SAMEORIGIN

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-Frame-Options

Hi Scott!
I think I understand, but here is my question. The site I want in the iframe
(https://www.escomp.com/IndexSearch1.php) is hosted by Network Solutions for us. Is Network Solutions
the one to be able to fix the x-frame option???

Thanks...
Rick

Yes. They can either do for you or perhaps point you in the right direction on how to do it yourself or they may have a global setting for everybody and there is nothing you can do.

Frankly, you would be better off having a form on Squarespace that submits the search parameters to your other site via an ajax request. Your other site can send json data back that your Squarespace page can digest and output to the screen. It would be a much better experience.

FYI, I saw on your results page, if you do not enter any parameters, it spits out your entire set of results which s what to large.  You should either force adding a parameter or limit the results to 100 rows or some other limit. 

Scott,
Thanks for your comments. I did go back to our Hosting site and their answer was no. They have set it globally and there is nothing I can do. We currently have a Red Part Search Button on our website ( https://www.escomponents.com
What we were attempting to do was to get that Search Part Page to appear in an iframe rather than clicking a button first.
I am not a programmer, so what little I have learned, I am not sure if this can be done. We would have to have a form
in Squarespace query a Database that's referenced on that Search Part Page and then display the results. More than likely, I would have to hire a Squarespace programmer to make this connection. AND besides, iframes have become
old school and do pose a security risk if you are accessing a site outside your domain. I will accept your solution!
AND thanks again for the helpful insight.
Rick