diff --git a/src/api/web-api-client.ts b/src/api/web-api-client.ts
index d775f095..3316e4a4 100644
--- a/src/api/web-api-client.ts
+++ b/src/api/web-api-client.ts
@@ -79,7 +79,7 @@ export abstract class WebApiClient implements ApiHeaderDecorator {
         if (form) {
             let formData = this.convertToFormData(form);
 
-            reqData.data = formData;
+            reqData.data = formData.toString();
         }
 
         let res = JsonUtil.parseLoseless((await Axios.request(reqData)).data);
diff --git a/src/config/client-config-provider.ts b/src/config/client-config-provider.ts
index 4b5c255c..95a3442d 100644
--- a/src/config/client-config-provider.ts
+++ b/src/config/client-config-provider.ts
@@ -17,7 +17,7 @@ export class DefaultClientConfigProvider implements ClientConfigProvider {
     private configuration: ClientConfig;
 
     constructor(config?: Partial<ClientConfig>) {
-        this.configuration = config ? Object.assign(config, DefaultConfiguration) : DefaultConfiguration;
+        this.configuration = config ? Object.assign(DefaultConfiguration, config) : DefaultConfiguration;
     }
 
     get Configuration() {