Addon-controls: esm is not defined error

[dexster]

Describe the bug
Site breaks when navigating to https://next--storybookjs.netlify.app/angular-cli/?path=/story/addons-controls--basic

Check the Console
vendors~main.329f7787c62cee5c3a74.manager.bundle.js:2 ReferenceError: esm is not defined

[khylerlin]

We are facing the same issue from some of our stories when navigate through controls.

[shilman]

@khylerlin which version are you using, and do you happen to know which version the issue started to appear in?

[khylerlin]

@shilman We are now using 6.4.0-alpha.20, and not sure what version started to appear this issue. I encountered this issue almost the issue has been created on Aug 6.

[w-p]

node: 14.17
npm: 7.17
angular: 12.1
storybook: 6.4.0-alpha.28

This issue occurs on a variety of alpha builds. Moreover, it works fine when running Storybook locally via start-storybook. When performing a build via build-storybook the build completes successfully but, when viewed in a browser, produces the below output on all but the most simplistic components.

[w-p]

Update. After refreshing the page on a component that causes the issue about, the below additional errors are logged.

[w-p]

Additionally, #15710 is correct in the explanation of behavior but the proposed downgrade does not work. Load the page, navigate to a component that works, click the actions tab, navigate to a component that previously failed and the component is rendered. However, some additional deprecation warnings are emitted.

Interestingly, the components which appear to cause the failure also have Angular @Output event emitters.

[atomicrobokid]

Seeing exactly the same thing here, stripped back the story to as minimal as possible and see this on the built version (not when running the server locally)

[gaetanmaisse]

I found the guilty commits, investigation in progress in #15812.

[ld210]

Same here, we're facing the same issue (except on local server).

storybook: 6.3.6
storybook/builder-webpack5: 6.4.0-alpha.1
angular: 12.1.0

node: 14.17.4
npm: 6.14.14

[navin-moorthy]

Works for me till v6.4.0-alpha.16

"@storybook/addon-a11y": "6.4.0-alpha.16",
"@storybook/addon-actions": "6.4.0-alpha.16",
"@storybook/addon-essentials": "6.4.0-alpha.16",
"@storybook/addon-postcss": "^2.0.0",
"@storybook/react": "6.4.0-alpha.16",

[shilman]

Egads!! I just released https://github.com/storybookjs/storybook/releases/tag/v6.4.0-alpha.30 containing PR #15812 that references this issue. Upgrade today to the @next NPM tag to try it out!

npx sb upgrade --prerelease

Closing this issue. Please re-open if you think there's still more to do.