add release notes for #871

CHANGELOG.md

@@ -38,6 +38,10 @@
 
     With this release, it's now possible to use e.g. `--define:import.meta.foo=123` to replace specific properties accessed off of the `import.meta` object as well as to use e.g. `--define:import.meta={\"foo\":123}` to substitute the entire `import.meta` expression with something else.
 
+* Fix a race condition with multiple injected files ([#871](https://github.com/evanw/esbuild/issues/871))
+
+    Using multiple injected files could cause a data race that trips Go's race detector. The data race has been fixed in this release. The fix was contributed by [@Deleplace](https://github.com/Deleplace).
+
 ## 0.8.50
 
 * Using direct `eval` now pulls in `module` and `exports`

internal/bundler/bundler.go

@@ -1079,8 +1079,8 @@ func (s *scanner) preprocessInjectedFiles() {
 		channel := make(chan config.InjectedFile)
 		s.maybeParseFile(*resolveResult, prettyPath, nil, logger.Range{}, nil, inputKindNormal, channel)
 
-		// Wait for the results in parallel
-		// The results slice is large enough, it is not reallocated during the computations
+		// Wait for the results in parallel. The results slice is large enough so
+		// it is not reallocated during the computations.
 		injectWaitGroup.Add(1)
 		go func(i int) {
 			results[i] = <-channel