Bug: disable cache in dev-mode

[ndelangen]

Closes #21443

What I did

I just added a no-cache control header on every request coming from the storybook dev-server

How to test

1. Run a sandbox for template, e.g. yarn task --task sandbox --start-from auto --template react-vite/default-ts
2. Open Storybook in your browser
3. check the request in the network tab, they should all show no-cache headers

[ndelangen]

@shilman let's discuss after storybook day?

[chakAs3]

i was really waiting for this. i was manually do it disabling the cache or opening incognito, but still in incognito i don't have vue extension.

so thanks @ndelangen

[chakAs3]

i will go ahead i merge this PR, these simple lines of code could saved 2 days of my life i was burning

[DarthVitalus]

Hi, guys! Could you please help me out here. Is there a way to change this header by config? Maybe webpackFinal? i've tried to make

/* .storybook/main.js */
module.exports = {
  webpackFinal: (config) => ({
    ...config, 
    devServer: { 
      proxy: { 
        '/static': { 
          headers: { 
            'Cache-Control': 'no-cache' 
          }
        }
      }
    }
  })
};

and still got no-store. So my fonts are loading again and again on every story i visit (and keep, you know, swapping). In develop build, production is good. I'm trying to understand, either i'm doing something wrong, or this behavior should be somewhat more configurable?