I tried various things including setting the browser (Chrome) to --disable-web-security and various suggestions here and here (and many more) but I can't seem to get it to work. Currently, I have:

#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>
ESP8266WebServer server(80);
void handleRoot() {
 server.send(200, "text/plain", "Root of WebServer!");
}
void setup() {
IPAddress ip(10.1.1.100);
IPAddress gateway(10.1.1.1);
IPAddress subnet(...);
WiFi.begin(ssid, password);
WiFi.config(ip, gateway, subnet);
 // put your setup code here, to run once:
 WiFi.begin(ssid, password);
 // Wait for connection
 while (WiFi.status() != WL_CONNECTED) {
 delay(500);
 }
 server.on("/", handleRoot);
 server.on("/myfunc", [](){ 
 String message = "";
 message += "URI: ";
 message += server.uri();
 message += "\nMethod: ";
 message += (server.method() == HTTP_GET)?"GET":"POST";
 message += "\nArguments: ";
 message += server.args();
 message += "\n";
 for (uint8_t i=0; i<server.args(); i++){
 message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
 }
 String num = server.arg(0);
 
 server.send(200, "text/plain", message);
 });
 server.on("/myfunc", HTTP_OPTIONS, []() {
 server.sendHeader("Access-Control-Allow-Origin","*")
 server.send(204);
 });
 
 server.onNotFound(handleNotFound);
 server.begin();
}
void loop() {
 delay(1000);
 ...
 server.handleClient();
}
void handleNotFound(){
 String message = "Error!";
 server.send(404, "text/plain", message);
}

So what am I doing wrong? Also one complication that might crop up later is that the domain from where I am calling this in ajax is https and from what I understand https and http are not compatible with cross-domain requests.

I tried various things including setting the browser (Chrome) to --disable-web-security and various suggestions, here and here (and many more) but I can't seem to get it to work. Currently, I have:

#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>
ESP8266WebServer server(80);
void handleRoot() {
 server.send(200, "text/plain", "Root of WebServer!");
}
void setup() {
IPAddress ip(10.1.1.100);
IPAddress gateway(10.1.1.1);
IPAddress subnet(...);
WiFi.begin(ssid, password);
WiFi.config(ip, gateway, subnet);
 // put your setup code here, to run once:
 WiFi.begin(ssid, password);
 // Wait for connection
 while (WiFi.status() != WL_CONNECTED) {
 delay(500);
 }
 server.on("/", handleRoot);
 server.on("/myfunc", [](){ 
 String message = "";
 message += "URI: ";
 message += server.uri();
 message += "\nMethod: ";
 message += (server.method() == HTTP_GET)?"GET":"POST";
 message += "\nArguments: ";
 message += server.args();
 message += "\n";
 for (uint8_t i=0; i<server.args(); i++){
 message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
 }
 String num = server.arg(0);
 
 server.send(200, "text/plain", message);
 });
 server.on("/myfunc", HTTP_OPTIONS, []() {
 server.sendHeader("Access-Control-Allow-Origin","*")
 server.send(204);
 });
 
 server.onNotFound(handleNotFound);
 server.begin();
}
void loop() {
 delay(1000);
 ...
 server.handleClient();
}
void handleNotFound(){
 String message = "Error!";
 server.send(404, "text/plain", message);
}

So what am I doing wrong? Also, one complication that might crop up later is that the domain from where I am calling this in ajax is https and from what I understand https and http are not compatible with cross-domain requests.

I am using a Raspberry Pi running Chrome (handling the user interface) and connecting via ajax to an Arduino D1 compatible. I recently started getting this error (wonder why it didn't happen for the last two years):

#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>
ESP8266WebServer server(80);
void handleRoot() {
 server.send(200, "text/plain", "Root of WebServer!");
}
void setup() {
IPAddress ip(..);
IPAddress gateway(...);
IPAddress subnet(...);
WiFi.begin(ssid, password);
WiFi.config(ip, gateway, subnet);
 // put your setup code here, to run once:
 WiFi.begin(ssid, password);
 // Wait for connection
 while (WiFi.status() != WL_CONNECTED) {
 delay(500);
 }
 server.on("/", handleRoot);
 server.on("/myfunc", [](){ 
 String message = "";
 message += "URI: ";
 message += server.uri();
 message += "\nMethod: ";
 message += (server.method() == HTTP_GET)?"GET":"POST";
 message += "\nArguments: ";
 message += server.args();
 message += "\n";
 for (uint8_t i=0; i<server.args(); i++){
 message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
 }
 String num = server.arg(0);
 
 server.send(200, "text/plain", message);
 });
 server.on("/myfunc", HTTP_OPTIONS, []() {
 server.sendHeader("Access-Control-Allow-Origin","*")
 server.send(204);
 });
 
 server.onNotFound(handleNotFound);
 server.begin();
}
void loop() {
 delay(1000);
 ...
 server.handleClient();
}
void handleNotFound(){
 String message = "Error!";
 server.send(404, "text/plain", message);
}

So what am I doing wrong? Also once complication that might crop up later is that the domain from where I am calling this in ajax is https and from what I understand https and http are not compatible with cross-domain requests.

I am using a Raspberry Pi running Chrome (handling the user interface) and connecting via ajax to an Arduino D1 compatible using the IP address as follows:

 $.ajax({
 type: "GET",
 url: "http://10.1.1.100/myfunc?id=5",
 error: function(jqXHR, exception, response) {
 console.log(exception, response);
 etc...

I recently started getting this error (wonder why it didn't happen for the last two years):

#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>
ESP8266WebServer server(80);
void handleRoot() {
 server.send(200, "text/plain", "Root of WebServer!");
}
void setup() {
IPAddress ip(10.1.1.100);
IPAddress gateway(10.1.1.1);
IPAddress subnet(...);
WiFi.begin(ssid, password);
WiFi.config(ip, gateway, subnet);
 // put your setup code here, to run once:
 WiFi.begin(ssid, password);
 // Wait for connection
 while (WiFi.status() != WL_CONNECTED) {
 delay(500);
 }
 server.on("/", handleRoot);
 server.on("/myfunc", [](){ 
 String message = "";
 message += "URI: ";
 message += server.uri();
 message += "\nMethod: ";
 message += (server.method() == HTTP_GET)?"GET":"POST";
 message += "\nArguments: ";
 message += server.args();
 message += "\n";
 for (uint8_t i=0; i<server.args(); i++){
 message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
 }
 String num = server.arg(0);
 
 server.send(200, "text/plain", message);
 });
 server.on("/myfunc", HTTP_OPTIONS, []() {
 server.sendHeader("Access-Control-Allow-Origin","*")
 server.send(204);
 });
 
 server.onNotFound(handleNotFound);
 server.begin();
}
void loop() {
 delay(1000);
 ...
 server.handleClient();
}
void handleNotFound(){
 String message = "Error!";
 server.send(404, "text/plain", message);
}

So what am I doing wrong? Also one complication that might crop up later is that the domain from where I am calling this in ajax is https and from what I understand https and http are not compatible with cross-domain requests.