Add an accept header in JSON request to help 3rd party services like localstack (#1721)

Author: jderusse

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## NOT RELEASED
 
+### Changed
+
+- Add `Accept: application/json` header in request to fix incompatibility with 3rd party providers
+
 ## 1.1.2
 
 ### Changed

src/Input/DetectDominantLanguageRequest.php

@@ -55,6 +55,7 @@ public function request(): Request
         $headers = [
             'Content-Type' => 'application/x-amz-json-1.1',
             'X-Amz-Target' => 'Comprehend_20171127.DetectDominantLanguage',
+            'Accept' => 'application/json',
         ];
 
         // Prepare query

tests/Unit/Input/DetectDominantLanguageRequestTest.php

@@ -18,6 +18,7 @@ public function testRequest(): void
             POST / HTTP/1.0
             Content-Type: application/x-amz-json-1.1
             x-amz-target: Comprehend_20171127.DetectDominantLanguage
+            Accept: application/json
 
             {
                 "Text": "This is my example text"