fix(transport): merge default headers with custom headers (#2862)

jerinthomascarmel · jerinthomascarmel · commit 1dc54bb2a42f · 2025-06-15T22:28:14.000+05:30
diff --git a/src/client.ts b/src/client.ts
@@ -261,6 +261,8 @@ export default class Client extends API {
     }
     if (opts.serverMode === 'serverless') headers['elastic-api-version'] = serverlessApiVersion
 
+    opts.headers= Object.assign({},headers,opts.headers)
+
     const options: Required<ClientOptions> = Object.assign({}, {
       Connection: UndiciConnection,
       Transport: opts.serverMode === 'serverless' ? Transport : SniffingTransport,

Original file line number	Diff line number	Diff line change
`@@ -261,6 +261,8 @@ export default class Client extends API {`
`261`	`261`	`}`
`262`	`262`	`if (opts.serverMode === 'serverless') headers['elastic-api-version'] = serverlessApiVersion`
`263`	`263`
	`264`	`+ opts.headers= Object.assign({},headers,opts.headers)`
	`265`	`+`
`264`	`266`	`const options: Required<ClientOptions> = Object.assign({}, {`
`265`	`267`	`Connection: UndiciConnection,`
`266`	`268`	`Transport: opts.serverMode === 'serverless' ? Transport : SniffingTransport,`