Laravel-mix: Variable prefixed with MIX_ in .env file is not available for use

[paradox37]

• Laravel Mix Version: 1.4.2 (npm list --depth=0)
• Node Version (node -v): 8.2.1
• NPM Version (npm -v): 5.3.0
• OS: Windows 10 x64
• Laravel Version: 5.4.33

Description:

Variable prefixed with MIX_ in .env file is not available for use.

Steps To Reproduce:

Set up project and define host using WAMP. Define MIX_SENTRY_DSN_PUBLIC in .env.

When using mix.browserSync(process.env.MIX_SENTRY_DSN_PUBLIC) it will not work.
When I use console.log(process.env.MIX_SENTRY_DSN_PUBLIC) it shows undefined in console.
If I use mix.browserSync('http://example.com') then it works.

Note: I'm opening this again, since this behavior is NOT as expected. Laravel documentation clearly states that this should be working: https://laravel.com/docs/5.4/mix#environment-variables

I must repeat, this was working in earlier version. And how should different developers work in same project when everyone uses different url for browserSync?

[JeffreyWay]

We have to compile your code down to parse your .env variables. So they aren't accessible from your webpack.mix.js file. Only your core JS bundle.

[dabernathy89]

Hey Jeffrey - is there any alternative way to allow multiple URLs for browserSync? We've got multiple devs using different local development URLs.