[a11y] Typo in @angular/cdk/a11y package breaks build

[flash-me]

Reproduction

Steps to reproduce:

1. npm i @angular/cdk
2. Open node_modules/@angular/cdk/bundles/cdk-a11y.umd.js
3. There you will find the following piece of code:

...((global.ng = global.ng || {}, global.ng.cdk = global.ng.cdk || {}, global.ng.cdk.a11Y = {}), global.ng.common, ....

Especially the UMD ID global.ng.cdk.a11Y is wrong, since every other module of the @angular/cdk or @angular/material framework looks for an UMD ID of global.ng.cdk.a11y (small writte 'y')

Expected Behavior

What behavior were you expecting to see?

UMD ID of global.ng.cdk.a11y

Actual Behavior

What behavior did you actually see?

UMD ID of global.ng.cdk.a11Y

Environment

• CDK/Material: 9.1.0

[crisbeto]

I can reproduce this against our local build, but from what I can tell it's not a typo, because we're passing in the correct name into Rollup. My guess is that something in Rollup uppercases it when it sees the number in the name.

[flash-me]

Alright, I'll issue this on @rollup. This issue can be closed from imo!
Thanks for your time @crisbeto :)

cheers
flash ⚡

[crisbeto]

Let's keep it open for now, there might be a way to work around it on our end. It's surprising that we haven't heard about it until now.

[flash-me]

There is another issue with the naming, when it is written with a dash. But against the decision to close the issue, imho this is not specific to @angular/components.
angular/angular#35765 (comment)

Could be related to @rollup aswell. I'm not sure. I'll try to dig in more this WE, if I can find some time.

cheers
flash ⚡

[devversion]

@flash-me Thanks for the issue! I've looked into it and it looks like a bug in @angular/bazel. I've created a fix for it in angular/angular#35792.