Advanced Iframe parent page links

I am new to Wordpress and Advanced Iframe, need to embed an page into the wordpress.
This is my code
[advanced_iframe src= width=“100%” height=“500px”]
The parent.aspx has one link, link1. Clicking on the link1 goes to link1.aspx page. It works well. However, refreshing the link1.aspx will automatically go back to parent.aspx. This is NOT what I want. I want link1.aspx reloaded when clicked. Any idea?
Another question is The parent.aspx has an external link <a href = “ ">XYZ. Clicking on the XYZ link goes to XYZ page. However the XYX page is still embedded in the parent.aspx with the header of parent.aspx. How to fix it?
Thank you advance.