fix: do not inject env vars into non-source files #13001
Merged
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Changes
Currently
vite-plugin-import-meta-env
injects a runtime into any file that includes the stringimport.meta.env
, which enables the use of env vars. Unfortunately this meant it also did this to non-source files such as JSON, CSS and HTML files that include that string. This caused performance issues like #12999, but could also break builds entirely in some cases where the asset wasn't transformed to JS.This PR filters the file types more comprehensively.
Fixes #12999
Testing
Adds test cases
Docs