Responsiveness should work if you trigger window resize event.
Here is a snippet to do that manually
To explain a bit more about the issue: The Edge composition does this weird behavior only when, the composition is loaded, I move to the next slide (the previous slide with the active Edge composition) is set to display: none. Now, on the new slide, I resize the browser window, and then move back to the previous slide (now set to display: block). This results in the Edge composition being scaled very small, until I resize the browser with my mouse then it rescales back to full size (fit its parent container).
Any suggestions or thoughts? Thanks.