BUG: Can't export to ZIP/ copy html

[1xdBen]

GrapesJS version

• I confirm to use the latest version of GrapesJS

What browser are you using?

Firefox, Chrome

Reproducible demo link

https://app.grapesjs.com/studio

Describe the bug

How to reproduce the bug?

1. Build a website in GrapesJS Studio (Alpha) (mine is 14 pages long, maybe thats the problem)/ load my project
2. Try to export it to ZIP

What is the expected behavior?
It is possible to export to Zip or copy the html code

What is the current behavior?
It just shows a black screen

If is necessary to execute some code in order to reproduce the bug, paste it here below:

I can't copy my code because of this bug. But you propably would have to use a website similar to mine. Thats why I used pictures to show the problem

Code of Conduct

• I agree to follow this project's Code of Conduct

[artf]

mine is 14 pages long, maybe thats the problem

I think it might be the usage of base64 images as in the demo we don't rely on any cloud storage so it's definitely not reliable to build large projects.
We'll investigate but being a simple demo I'd not put that much of a priority, to be honest.