[Bug]: Composition - some addons don't seem to work

[ndelangen]

Describe the bug

report by @yannbf during QA:

When composing a Storybook that contains exactly the same code (two directories with the same project, each running SB in a different port), most of the addons in the toolbar don't seem to work

Addons that worked:

• controls
• actions
• viewport
• a11y panel
• storybook-addon-designs

Addons that did not work:

• backgrounds (and grid)
• measure
• outline
• a11y toolbar

Edit: It seems that if I switch stories after enabling all addons, the next story does contain most of them (a11y filters never worked)

To Reproduce

• make a static storybook
• host the static storybook
• change the same storybook's main.js file, to compose the static hosted one
  (you should now have exactly the same storybook twice, 1 referencing the other)
• start the storybook

System

No response

Additional context

No response

[shilman]

This is by design and has always been this way AFAIK. At some point we should fix it but @tmeasday did not want to open up that can of worms in the initial release, so it was intentionally scoped out.

[ndelangen]

I verified, this is still an issue in Storybook 8.1.10