Match Accept header with Content-Type in the proto exporter (#3562)

* Match Accept header with Content-Type in the proto exporter * Lint fixes * Add changelog entry
open-telemetry · Jan 24, 2023 · bcfb1b6 · bcfb1b6
1 parent 9589d54
commit bcfb1b6
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -13,6 +13,9 @@ For experimental package changes, see the [experimental CHANGELOG](experimental/
 
 ### :bug: (Bug Fix)
 
+* fix(otlp-proto-exporter-base): Match Accept header with Content-Type in the proto exporter
+ [#3562](https://github.com/open-telemetry/opentelemetry-js/pull/3562) @scheler
+
 ### :books: (Refine Doc)
 
 ### :house: (Internal)

diff --git a/...al/packages/otlp-proto-exporter-base/src/platform/browser/OTLPProtoExporterBrowserBase.ts b/...al/packages/otlp-proto-exporter-base/src/platform/browser/OTLPProtoExporterBrowserBase.ts
@@ -75,7 +75,11 @@ export abstract class OTLPProtoExporterBrowserBase<
         sendWithXhr(
           new Blob([body], { type: 'application/x-protobuf' }),
           this.url,
-          { ...this._headers, 'Content-Type': 'application/x-protobuf' },
+          {
+            ...this._headers,
+            'Content-Type': 'application/x-protobuf',
+            Accept: 'application/x-protobuf',
+          },
           this.timeoutMillis,
           onSuccess,
           onError