Handling text payload from HTTP GET on ESP 8266

Projects Programming
2

Maybe ESP8266HTTPClient was a big dead-end for me.
Following How the read a website-content with ESP8266 ? - #4 by tolga121, I've used client.print(). Now I can get return code 1, but the output is just 3 blank lines. Here is setup(){ }, with the same headers and macros as before:

void
setup()
{
  char serverName[100];
  char request[200];
  int httpCode;
  String line;

  u8g2.begin();
  u8g2.setFont(FONT);
  NEWSCREEN(0);

  get_wifi();

  NEWSCREEN(0);
  sprintf(serverName,"icanhazip.com");
  httpCode = client.connect(serverName,80);
  WRITE_LINE("%d:%s", httpCode,serverName);
  sprintf(request,
      "GET / HTTP/1.1\r\n"
      "Host: %s\r\n"
      "User-Agent: ESP8266/NodeMCU 0.9\r\n"
      "Accept: */*\r\n",
      serverName);
  client.print(request);
  WRITE_LINE("have printed request");
  while(client.connected()){
    WRITE_LINE("connected");
    line = client.readStringUntil('\r');
    WRITE_LINE("%s",line);
  }

  WRITE_LINE("endo");
  delay(20000);
}

By the way, I've tried to follow the advice in arduino - Request cURL with ESP8266 - Stack Overflow to get the GET parameters (headers, maybe?) from "curl -v [url]".