IFrame Problems

I use an iframe for a website interface that involves simulating skills for a game: DragonNest. Now, a partial feature in my website is to have users submit their own Skill Builds and the skill simulator website interface allows them to generate a skill build permanent link. I use the iframe to display the website that should generate the skill simulator settings but through the iframe–it doesn’t.

This is the skill simulator settings:
http://jcaspian.co.cc/dn/simulator/?lc1uR|21$0$0&ifr=guardian.html

When users submit a skill build the iframe doesn’t preview the website at all. It just shows the regular original skill simulator w/o the settings included.

I’m wondering if there is an alternative to the iframe that I can use in wordpress, one that actually previews the site w/ the settings. Or maybe something that can be done in single.php to get the website generating the skill simulator settings.

Thanks.