File Extension Mismatch in storybook/app/angular/src/server/options.ts

[spenceryue]

Describe the bug
In the source file, the code reads require.resolve('./framework-preset-angular.js'), but no such file exists in the storybook/app/angular/src/server/ directory. Instead there is a frame-work-preset-angular.ts file.

There doesn't seem to be an error message, even though require.resolve does usually throw Error: Cannot find module '...' when the argument can't be resolved.

I'm not sure how serious this bug is.

To Reproduce
Steps to reproduce the behavior:

1. Go to options.ts.
2. Notice the path argument of require.resolve.
3. Go to the parent directory.
4. Notice there is no file named framework-preset-angular.js.

Expected behavior
Should get an error when trying to build the Storybook.

System:

• OS: MacOS
• Device: Macbook Pro 2016
• Browser: Chrome
• Framework: Angular
• Version: 5.1.9

[spenceryue]

The files become *.js files after building I assume.