Could Canvas consider an idea like this Iframe-resizer by davidjbradshaw
when embeding an external url/tool or add an LTI page that use iframe approach, the iframe could auto adjust to its actual height.
This is for better user experience and quite easy to implement.
Canvas needs to include the iframeResizer.min.js
the embedded tool/resource could include iframeResizer.contentWindow.min.js
if not included, it's just what it is, like now.
Quite some existing resources/tools that teachers use, might still not able to produce within Canvas, or teachers simply dont have time/resource to reproduce.
With this feature, many teachers/developers/users could be benefited from it.
( Suggested it within the idea area, but I could not find my post, so suggested here again )