Merge pull request #1596 from mrueg/fix-uncompressed-content-header

fix: Unset Content-Encoding header when uncompressed
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Arthur Silva Sens 2024-08-23 16:09:01 -03:00 committed by GitHub
commit 67121dc55a
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4 changed files with 10 additions and 4 deletions

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@ -1,5 +1,9 @@
## Unreleased
## 1.20.2 / 2024-08-23
* [BUGFIX] promhttp: Unset Content-Encoding header when data is uncompressed. #1596
## 1.20.1 / 2024-08-20
* [BUGFIX] process-collector: Fixed unregistered descriptor error when using process collector with `PedanticRegistry` on linux machines. #1587

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@ -1 +1 @@
1.20.1
1.20.2

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@ -203,8 +203,10 @@ func HandlerForTransactional(reg prometheus.TransactionalGatherer, opts HandlerO
defer closeWriter()
rsp.Header().Set(contentEncodingHeader, encodingHeader)
// Set Content-Encoding only when data is compressed
if encodingHeader != string(Identity) {
rsp.Header().Set(contentEncodingHeader, encodingHeader)
}
enc := expfmt.NewEncoder(w, contentType)
// handleError handles the error according to opts.ErrorHandling

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@ -267,7 +267,7 @@ func TestInstrumentMetricHandler(t *testing.T) {
t.Errorf("got HTTP status code %d, want %d", got, want)
}
if got, want := writer.Header().Get(contentEncodingHeader), string(Identity); got != want {
if got, want := writer.Header().Get(contentEncodingHeader), ""; got != want {
t.Errorf("got HTTP content encoding header %s, want %s", got, want)
}