diff --git a/F4SDM42WebApi/F4SD - M42WebApi.csproj b/F4SDM42WebApi/F4SD - M42WebApi.csproj
index 31a6d7b..cbd4869 100644
--- a/F4SDM42WebApi/F4SD - M42WebApi.csproj	
+++ b/F4SDM42WebApi/F4SD - M42WebApi.csproj	
@@ -13,7 +13,7 @@
     <EnableDefaultCompileItems>false</EnableDefaultCompileItems>
     <M42ExtensionId>6673a25d-33d6-4072-91d9-abed4be1a966</M42ExtensionId>
     <M42AssemblyPattern>C4ITF4SD*.*</M42AssemblyPattern>
-    <M42PackageVersion>1.4.0.36</M42PackageVersion>
+    <M42PackageVersion>1.4.0.37</M42PackageVersion>
     <M42BuildPackage>true</M42BuildPackage>
   </PropertyGroup>
 
diff --git a/F4SDM42WebApi/F4SDM42WebApiController.cs b/F4SDM42WebApi/F4SDM42WebApiController.cs
index 9549eed..d9e2196 100644
--- a/F4SDM42WebApi/F4SDM42WebApiController.cs
+++ b/F4SDM42WebApi/F4SDM42WebApiController.cs
@@ -210,7 +210,7 @@ namespace C4IT.F4SD
         */
         [Route("getPickup/{name}"), HttpGet]
         //[CacheOutput(UseETAG = true)]
-        public async Task<HttpResponseMessage> getPickup(string name, EntityEnumerationVisibilityMode mode = EntityEnumerationVisibilityMode.None, Int32 group = -1)
+        public async Task<EntityEnumeration> getPickup(string name, EntityEnumerationVisibilityMode mode = EntityEnumerationVisibilityMode.None, Int32 group = -1)
         {
             await Task.Delay(0);
             EntityEnumeration enumerationTemp = GetEnumeration(name, mode);
@@ -233,7 +233,7 @@ namespace C4IT.F4SD
                 Values = vals.ToArray()
             };
             //CacheOutputAttribute.RegisterResponseEtag($"enum_{enumeration.Name}_{(int)mode}", $"{enumeration.Name}_{(int)mode}", cultureInvariant: false, userInvariant: true, val);
-            return Matrix42.WebApi.Contracts.HttpResponseExtensions.CreateResponse(Request, HttpStatusCode.OK, enumeration);
+            return enumeration;
         }
 
         [Route("getMyRoleMemberships"), HttpGet]
@@ -395,9 +395,9 @@ namespace C4IT.F4SD
         }
 
         [Route("isAlive"), HttpGet]
-        public HttpResponseMessage isAlive()
+        public IHttpActionResult isAlive()
         {
-            return new HttpResponseMessage(HttpStatusCode.NoContent);
+            return new StatusCodeResult(HttpStatusCode.NoContent);
         }
 
         [Route("loglevel"), HttpGet]
@@ -423,16 +423,20 @@ namespace C4IT.F4SD
         }
 
         [Route("log"), HttpGet]
-        public HttpResponseMessage getLog(string download = "0", int count = 50, string filter = "")
+        public IHttpActionResult getLog(string download = "0", int count = 50, string filter = "")
         {
             try
             {
-                return _f4stHelperService.privGetLog(download, count, Request, filter);
+                var response = _f4stHelperService.privGetLog(download, count, Request, filter);
+                if (response == null)
+                    return new StatusCodeResult(HttpStatusCode.NoContent);
+
+                return new ResponseMessageResult(response);
             }
             catch (Exception E)
             {
                 LogException(E);
-                return null;
+                return new StatusCodeResult(HttpStatusCode.InternalServerError);
             }
         }
     }
diff --git a/docs/postman/C4IT-F4SD-M42WebApi.postman_collection.json b/docs/postman/C4IT-F4SD-M42WebApi.postman_collection.json
index 84f1ec7..fe7b86d 100644
--- a/docs/postman/C4IT-F4SD-M42WebApi.postman_collection.json
+++ b/docs/postman/C4IT-F4SD-M42WebApi.postman_collection.json
@@ -37,6 +37,20 @@
           "            pm.response.to.be.json;",
           "        }",
           "    });",
+          "",
+          "    const contentType = pm.response.headers.get(\"Content-Type\") || \"\";",
+          "    if (contentType.toLowerCase().includes(\"json\")) {",
+          "        const json = pm.response.json();",
+          "        const isSerializedHttpResponse = json && !Array.isArray(json) &&",
+          "            Object.prototype.hasOwnProperty.call(json, \"Version\") &&",
+          "            Object.prototype.hasOwnProperty.call(json, \"Content\") &&",
+          "            Object.prototype.hasOwnProperty.call(json, \"StatusCode\") &&",
+          "            Object.prototype.hasOwnProperty.call(json, \"IsSuccessStatusCode\");",
+          "",
+          "        pm.test(\"Response is not a serialized HttpResponseMessage\", function () {",
+          "            pm.expect(isSerializedHttpResponse).to.equal(false);",
+          "        });",
+          "    }",
           "}"
         ]
       }