dont serialize null values (#250)

fastify · Jun 24, 2023 · 97a9c12 · 97a9c12
1 parent a9eab58
commit 97a9c12
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Showing 2 changed files with 2 additions and 1 deletion.
diff --git a/lib/response.js b/lib/response.js
@@ -162,6 +162,8 @@ function serializeHeaders (response) {
     const headerValue = headers[headerName]
     if (Array.isArray(headerValue)) {
       headers[headerName] = headerValue.map(value => '' + value)
+    } else if (headerValue === null || headerValue === undefined) {
+      delete headers[headerName]
     } else {
       headers[headerName] = '' + headerValue
     }

diff --git a/test/index.test.js b/test/index.test.js
@@ -1620,7 +1620,6 @@ test('correctly handles no string headers', (t) => {
     t.strictSame(res.headers, {
       integer: '12',
       float: '3.14',
-      null: 'null',
       string: 'string',
       object: '[object Object]',
       array: ['1', 'two', '3'],