diff --git a/src/libraries/System.Net.Requests/src/Resources/Strings.resx b/src/libraries/System.Net.Requests/src/Resources/Strings.resx
index 4c0a7a45c146ff..8157909f348922 100644
--- a/src/libraries/System.Net.Requests/src/Resources/Strings.resx
+++ b/src/libraries/System.Net.Requests/src/Resources/Strings.resx
@@ -261,9 +261,6 @@
   <data name="CacheEntryNotFound" xml:space="preserve">
     <value>The request was aborted: The request cache-only policy does not allow a network request and the response is not found in cache.</value>
   </data>
-  <data name="net_proxyschemenotsupported" xml:space="preserve">
-    <value>The ServicePointManager does not support proxies with the {0} scheme.</value>
-  </data>
   <data name="net_maximumbindretries" xml:space="preserve">
     <value>Reached the maximum number of BindIPEndPointDelegate retries.</value>
   </data>
diff --git a/src/libraries/System.Net.Requests/src/System/Net/ServicePoint/ServicePointManager.cs b/src/libraries/System.Net.Requests/src/System/Net/ServicePoint/ServicePointManager.cs
index bbf20b3e808b62..8245e309efd933 100644
--- a/src/libraries/System.Net.Requests/src/System/Net/ServicePoint/ServicePointManager.cs
+++ b/src/libraries/System.Net.Requests/src/System/Net/ServicePoint/ServicePointManager.cs
@@ -178,11 +178,6 @@ private static bool ProxyAddressIfNecessary(ref Uri address, IWebProxy? proxy)
                     Uri? proxyAddress = proxy.GetProxy(address);
                     if (proxyAddress != null)
                     {
-                        if (proxyAddress.Scheme != Uri.UriSchemeHttp)
-                        {
-                            throw new NotSupportedException(SR.Format(SR.net_proxyschemenotsupported, address.Scheme));
-                        }
-
                         address = proxyAddress;
                         return true;
                     }
diff --git a/src/libraries/System.Net.Requests/tests/HttpWebRequestTest.cs b/src/libraries/System.Net.Requests/tests/HttpWebRequestTest.cs
index e88d8800f99f0f..54ad032277d875 100644
--- a/src/libraries/System.Net.Requests/tests/HttpWebRequestTest.cs
+++ b/src/libraries/System.Net.Requests/tests/HttpWebRequestTest.cs
@@ -2406,6 +2406,15 @@ public void SendHttpRequest_BindIPEndPoint_Throws()
             }, IsAsync.ToString()).Dispose();
         }
 
+        [Fact]
+        public void HttpWebRequest_HttpsAddressWithProxySetProtocolVersion_ShouldNotThrow()
+        {
+            HttpWebRequest request = (HttpWebRequest) WebRequest.Create("https://microsoft.com");
+            request.Proxy = new WebProxy();
+            request.ProtocolVersion = HttpVersion.Version11;
+            Assert.Same(HttpVersion.Version11, request.ServicePoint.ProtocolVersion);
+        }
+
         private void RequestStreamCallback(IAsyncResult asynchronousResult)
         {
             RequestState state = (RequestState)asynchronousResult.AsyncState;
diff --git a/src/libraries/System.Net.Requests/tests/ServicePointTests/ServicePointManagerTest.cs b/src/libraries/System.Net.Requests/tests/ServicePointTests/ServicePointManagerTest.cs
index ec64068ed456fc..33f7d1ac48ba70 100644
--- a/src/libraries/System.Net.Requests/tests/ServicePointTests/ServicePointManagerTest.cs
+++ b/src/libraries/System.Net.Requests/tests/ServicePointTests/ServicePointManagerTest.cs
@@ -213,7 +213,6 @@ public static void InvalidArguments_Throw()
                 AssertExtensions.Throws<ArgumentNullException>("address", () => ServicePointManager.FindServicePoint(null));
                 AssertExtensions.Throws<ArgumentNullException>("uriString", () => ServicePointManager.FindServicePoint((string)null, null));
                 AssertExtensions.Throws<ArgumentNullException>("address", () => ServicePointManager.FindServicePoint((Uri)null, null));
-                Assert.Throws<NotSupportedException>(() => ServicePointManager.FindServicePoint("http://anything", new FixedWebProxy("https://anything")));
 
                 ServicePoint sp = ServicePointManager.FindServicePoint($"http://{Guid.NewGuid():N}", null);
                 AssertExtensions.Throws<ArgumentOutOfRangeException>("value", () => sp.ConnectionLeaseTimeout = -2);