web server--browser shows source code Html and not the page

I have the problem that, when i 'myClient.Println' the html codes , the browser shows the code and not the page.
the browser shows as follow.

HELLOHTTP/1.1 200 OK
Content-Type: text/html
Connection: close

Arduino LED Control

LED

Click to switch LED on and off.

LED13

I use this code:

if (myClient.available()) {
char c = myClient.read(); // read 1 byte (character) from client
HTTP_req += c;
if (c == '\n' && currentLineIsBlank) {
myClient.println("HTTP/1.1 200 OK");
myClient.println("Content-Type: text/html");
myClient.println("Connection: close"); // Dopo la risposta la connessione si interrompe
myClient.println();
myClient.println("");
// send web page
myClient.println("");
myClient.println("");
myClient.println("");
myClient.println("Arduino LED Control");
myClient.println("");
myClient.println("");
myClient.println("

LED

");
myClient.println("

Click to switch LED on and off.

");
myClient.println("<form method="get">");
//start check
ProcessCheckbox(myClient);
// start check
myClient.println("");
myClient.println("");
myClient.println("");
Serial.print(HTTP_req);
HTTP_req = "";
break;

from where come out --> HELLO?

from where come out --> HELLO?

Maybe from the code you didn't post.

There is no particular reason to use a Content-type record when the content type is html and the content is going to a browser. The browser expects html.

Did you use the http:// in the url you put in the browser url box?