diff --git a/doc/api/http.markdown b/doc/api/http.markdown
index f5811e4a476628..c5f160c9b7accd 100644
--- a/doc/api/http.markdown
+++ b/doc/api/http.markdown
@@ -381,6 +381,15 @@ Example:
 
     var contentType = response.getHeader('content-type');
 
+### response.getAllHeaders()
+
+Reads out all headers that are already been queued but not yet sent to the
+client. This can only be called before headers get implicitly flushed.
+
+Example:
+
+    var headers = response.getAllHeaders();
+
 ### response.removeHeader(name)
 
 Removes a header that's queued for implicit sending.
diff --git a/lib/_http_outgoing.js b/lib/_http_outgoing.js
index 25157d34a44298..7c1c9503a6eb09 100644
--- a/lib/_http_outgoing.js
+++ b/lib/_http_outgoing.js
@@ -337,6 +337,14 @@ OutgoingMessage.prototype.getHeader = function(name) {
 };
 
 
+OutgoingMessage.prototype.getAllHeaders = function() {
+  if (!this._headers)
+    return;
+  else
+    return util._extend({}, this._headers);
+};
+
+
 OutgoingMessage.prototype.removeHeader = function(name) {
   if (arguments.length < 1) {
     throw new Error('`name` is required for removeHeader(name).');
diff --git a/test/parallel/test-http-header-get-all.js b/test/parallel/test-http-header-get-all.js
new file mode 100644
index 00000000000000..40305a3570f6ec
--- /dev/null
+++ b/test/parallel/test-http-header-get-all.js
@@ -0,0 +1,31 @@
+var common = require('../common');
+var assert = require('assert');
+var http = require('http');
+
+var s = http.createServer(function(req, res) {
+  var contentType = 'content-type';
+  var plain = 'text/plain';
+  res.setHeader(contentType, plain);
+  assert.ok(!res.headersSent);
+  res.writeHead(200);
+  assert.ok(res.headersSent);
+  res.end('hello world\n');
+  // This checks that after the headers have been sent, getHeader works
+  // and does not throw an exception (joyent/node Issue 752)
+  assert.doesNotThrow(
+      function() {
+        assert.deepStrictEqual({ 'content-type': 'text/plain' }, res.getAllHeaders());
+      }
+  );
+});
+
+s.listen(common.PORT, runTest);
+
+function runTest() {
+  http.get({ port: common.PORT }, function(response) {
+    response.on('end', function() {
+      s.close();
+    });
+    response.resume();
+  });
+}