Here's the code:

[advanced_iframe use_shortcode_attributes_only="true" src="https://synexis.com/science/reports-data/" width="100%" height="100%" scrolling="auto" enable_ios_mobile_scrolling="true" style="position:fixed;z-index:9000;top:0px;left:0px;margin:0px" id="advanced_iframe2" name="Data" onload_scroll_top="iframe" hide_content_until_iframe_color="#ffffff" enable_responsive_iframe="true" content_id="html,body" content_styles="overflow:hidden" show_part_of_iframe="true" iframe_hide_elements="#header, #footer" use_post_message="false"]

The page can be viewed at https://www.impactiaq.com/data/

I need to be able to display my own header at the top, what do I need to insert?

Thank you!

Are you able to use the external workaround? 

What you can try is

http://www.tinywebgallery.com/blog/advanced-iframe/advanced-iframe-pro-demo/hide-a-part-of-the-iframe#e45

Or maybe also fullscreen iframes with header/footers is what you are looking for:

http://www.tinywebgallery.com/blog/advanced-iframe/advanced-iframe-pro-demo/advanced-height-features-with-headers-and-fullscreen-iframes

Is this what you are looking for? 

Best regards,

Michael

Michael, I need to strip the header and footer off of the page in my iframe, and retain my header and footer.  Does that make sense?

Thank you, Chris

I know what you want. As you don't have access you cannot have a perfect solution.

This is why I posted e.g. the 1st link. There you could e.g. make a fullscreen iframe + 2 divs. one for the header and one for the footer. One aligned at the top. one at the bottom.
The parent does not know the content in the iframe. Therefore you have to place divs over the iframe. Like shown in the examples of link 1.

Best regards, Michael