import.meta.env.BASE_URL is including a trailing slash

[sugarmaplemedia]

What version of astro are you using?

2.1.4

Are you using an SSR adapter? If so, which one?

None

What package manager are you using?

npm

What operating system are you using?

Windows

What browser are you using?

Firefox

Describe the Bug

When I call import.meta.env.BASE_URL in my src files, it includes a trailing slash that renders incorrectly as http://localhost/foo//bar.

Link to Minimal Reproducible Example

https://stackblitz.com/edit/github-wccs8f?file=src/pages/index.astro

Participation

• I am willing to submit a pull request for this issue.

[sugarmaplemedia]

Update: setting trailingSlash in the config from the default ignore to never fixed the issue. Either way, its still a bug.

[bluwy]

Makes sense to me. Looks like the behaviour was from #5358, even though before it we had always prepend a slash. But I agree that if the default is ignore, it should probably leave the base as is.

There's a good chance someone might be relying on the old behaviour though so "fixing" this could be a breaking change.

[bluwy]

I've got a fix for this, which when using trailingSlash: "ignore", the slashes in the base is preserved as is. Branch.

It changes a test to pass though, so I think this is indeed a breaking change, and would have to keep it till the next major.

[natemoo-re]

Closing this since #7878 has been merged to next. This will be fixed in Astro 3.0!