When using within an iframe with 3rd party cookies blocked, "No suitable storage found" error thrown

[pkgarg]

I've been using the layout manager for several years.

More recently, we upgraded to the latest NPM download for layout-jquery3.

When using it within an iframe to publish a page on domain other than the page domain, we get a 'No suitable storage found' error, when the user's browser has blocked all 3rd party cookies.

I'm willing to dig into the code to fix, but would need some guidance.

[pkgarg]

The problem is embedded code for Persist.js in jquery.layout_and_plugins.js.

A workaround is to replace Persist.js by a more modern library.