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Fix error reporting bug 

That's the same bug fixed in #342 (which is the deprecated code only
replicated in the `prometheus` package until v0.10 is out).
This commit is contained in:
beorn7 2017-08-31 15:10:58 +02:00
parent 535f493f5a
commit 2cb8df16e3
1 changed files with 1 additions and 1 deletions
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2
prometheus/promhttp/http.go
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@ -128,7 +128,7 @@ func HandlerFor(reg prometheus.Gatherer, opts HandlerOpts) http.Handler {
closer.Close() closer.Close()
} }
if lastErr != nil && buf.Len() == 0 { if lastErr != nil && buf.Len() == 0 {
http.Error(w, "No metrics encoded, last error:\n\n"+err.Error(), http.StatusInternalServerError) http.Error(w, "No metrics encoded, last error:\n\n"+lastErr.Error(), http.StatusInternalServerError)
return return
} }
header := w.Header() header := w.Header()