diff --git a/openapi.yaml b/openapi.yaml
index 46edd69..adaf371 100644
--- a/openapi.yaml
+++ b/openapi.yaml
@@ -406,7 +406,7 @@ paths:
             schema:
               type: object
               properties:
-                phone_number:
+                phone:
                   type: integer
                   example: '6289685024091'
                 message:
@@ -460,7 +460,7 @@ paths:
                 type: object
               example:
                 code: 400
-                message: 'phone_number: cannot be blank.'
+                message: 'phone: cannot be blank.'
                 results: null
         '500':
           description: Internal Server Error
@@ -496,7 +496,7 @@ paths:
             schema:
               type: object
               properties:
-                phone_number:
+                phone:
                   type: integer
                   example: '6289685024091'
                 caption:
@@ -556,7 +556,7 @@ paths:
                 type: object
               example:
                 code: 400
-                message: 'phone_number: cannot be blank.'
+                message: 'phone: cannot be blank.'
                 results: null
         '500':
           description: Internal Server Error
@@ -592,7 +592,7 @@ paths:
             schema:
               type: object
               properties:
-                phone_number:
+                phone:
                   type: integer
                   example: '6289685024091'
                 caption:
@@ -652,7 +652,7 @@ paths:
                 type: object
               example:
                 code: 400
-                message: 'phone_number: cannot be blank.'
+                message: 'phone: cannot be blank.'
                 results: null
         '500':
           description: Internal Server Error
diff --git a/views/index.html b/views/index.html
index e2a1c2c..2ecba8d 100644
--- a/views/index.html
+++ b/views/index.html
@@ -529,7 +529,13 @@
                         payload.append("phone", this.message_phone)
                         payload.append("message", this.message_text)
                         payload.append("type", this.message_type)
-                        let response = await axios.post(`${this.app_host}/send/message`, payload)
+                        let response = await axios.post(`${this.app_host}/send/message`, payload, {
+                            // Axios Bug, always content-type that make boundary not set default by browser https://github.com/axios/axios/issues/1603
+                            transformRequest: (data, headers) => {
+                                delete headers.post['Content-Type'];
+                                return data;
+                            }
+                        })
                         this.sendMessageReset();
                         resolve(response.data.message)
                     } catch (error) {
@@ -578,7 +584,13 @@
                         payload.append("caption", this.image_caption)
                         payload.append("image", $("#image_file")[0].files[0])
                         payload.append("type", this.image_type)
-                        let response = await axios.post(`${this.app_host}/send/image`, payload)
+                        let response = await axios.post(`${this.app_host}/send/image`, payload, {
+                            // Axios Bug, always content-type that make boundary not set default by browser https://github.com/axios/axios/issues/1603
+                            transformRequest: (data, headers) => {
+                                delete headers.post['Content-Type'];
+                                return data;
+                            }
+                        })
                         this.sendImageReset();
                         resolve(response.data.message)
                     } catch (error) {
@@ -626,7 +638,13 @@
                         payload.append("phone", this.file_phone)
                         payload.append("file", $("#file_file")[0].files[0])
                         payload.append("type", this.file_type)
-                        let response = await axios.post(`${this.app_host}/send/file`, payload)
+                        let response = await axios.post(`${this.app_host}/send/file`, payload, {
+                            // Axios Bug, always content-type that make boundary not set default by browser https://github.com/axios/axios/issues/1603
+                            transformRequest: (data, headers) => {
+                                delete headers.post['Content-Type'];
+                                return data;
+                            }
+                        })
                         this.sendFileReset();
                         resolve(response.data.message)
                     } catch (error) {