kerem commented

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Originally created by @alemori on GitHub (Dec 20, 2018).
Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/790

I'm using wifimanager version 0.14 with esp8266webserver version 1.0.0 and when I send html pages with server.send, it doesn't work for me and in the debug appears Request redirected to captive portal. What can it be?

Originally created by @alemori on GitHub (Dec 20, 2018). Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/790 I'm using wifimanager version 0.14 with esp8266webserver version 1.0.0 and when I send html pages with server.send, it doesn't work for me and in the debug appears Request redirected to captive portal. What can it be?

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2026-02-28 01:26:27 +03:00

kerem commented

2026-02-28 01:26:28 +03:00

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@tablatronix commented on GitHub (Dec 20, 2018):

probably because wm uses it and you cannot use it twice

@tablatronix commented on GitHub (Dec 20, 2018): probably because wm uses it and you cannot use it twice

kerem commented

2026-02-28 01:26:28 +03:00

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@alemori commented on GitHub (Dec 20, 2018):

and how can I use a server.send that works?

@alemori commented on GitHub (Dec 20, 2018): and how can I use a server.send that works?

kerem commented

2026-02-28 01:26:28 +03:00

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@tablatronix commented on GitHub (Dec 20, 2018):

the development branch allows it

@tablatronix commented on GitHub (Dec 20, 2018): the development branch allows it

kerem commented

2026-02-28 01:26:28 +03:00

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@alemori commented on GitHub (Dec 20, 2018):

How is it done? Can you give me an example? Thank you

@alemori commented on GitHub (Dec 20, 2018): How is it done? Can you give me an example? Thank you

kerem commented

2026-02-28 01:26:28 +03:00

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@tablatronix commented on GitHub (Dec 21, 2018):

#461

@tablatronix commented on GitHub (Dec 21, 2018): #461

kerem commented

2026-02-28 01:26:28 +03:00

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@tablatronix commented on GitHub (Dec 21, 2018):

Development branch dev/ondemandconfigportal should have an example in it

@tablatronix commented on GitHub (Dec 21, 2018): Development branch dev/ondemandconfigportal should have an example in it

kerem commented

2026-02-28 01:26:28 +03:00

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@alemori commented on GitHub (Dec 21, 2018):

I went to Development branch dev/ondemandconfigportal, but only wifimanager is used there. I also wanted to compile the .ino and gave me errors, I guess the error is mine, because I do not know how to work with the development code. What I need is to be able to write the html interface using the ESP8266webserver facility. If there is any example that you can give me, I would appreciate it. I copy the code that I'm trying to make work, and for example when I invoke 192.168.4.1/pepepe, it doesn't give me anything back.

#include <FS.h> // this needs to be first, or it all crashes and burns...
#include <WiFiManager.h> // https://github.com/tzapu/WiFiManager
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>
#include "index.h"
ESP8266WebServer server2(81);
String s1 = MAIN_page; //Read HTML contents

void handleRoot() {
//server.setContentLength(CONTENT_LENGTH_UNKNOWN);
server.send(200, "text/plain", "hello from esp8266!");
}
void pepe(){
Serial.print("Entro a handleRoot");
//server.setContentLength(CONTENT_LENGTH_UNKNOWN);
server.send(200, "text/html", s1); //Send web page
}
void handleReset() {
//server.setContentLength(CONTENT_LENGTH_UNKNOWN);
server.send(200, "text/plain", "Resetting!");
//Serial.println("diconnecting client and wifi");
//client.disconnect();
wifi_station_disconnect();

WiFiManager wifiManager;
wifiManager.resetSettings();
ESP.reset();

}

void handleNotFound(){
String message = "File Not Found\n\n";
message += "URI: ";
message += server2.uri();
message += "\nMethod: ";
message += (server2.method() == HTTP_GET)?"GET":"POST";
message += "\nArguments: ";
message += server2.args();
message += "\n";
for (uint8_t i=0; i<server2.args(); i++){
message += " " + server2.argName(i) + ": " + server2.arg(i) + "\n";
}
server2.send(404, "text/plain", message);
}

void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
Serial.println();
// Serial.setDebugOutput(true);

//WiFiManager
//Local intialization. Once its business is done, there is no need to keep it around
WiFiManager wifiManager;

//exit after config instead of connecting
wifiManager.setBreakAfterConfig(true);
//reset settings - for testing
//wifiManager.resetSettings();

//tries to connect to last known settings
//if it does not connect it starts an access point with the specified name
//here "AutoConnectAP" with password "password"
//and goes into a blocking loop awaiting configuration
if (!wifiManager.autoConnect("AutoConnectAP", "password")) {
Serial.println("failed to connect, we should reset as see if it connects");
delay(3000);
ESP.restart();
delay(5000);
}

//if you get here you have connected to the WiFi
Serial.println("");
Serial.print("Connected to ");
Serial.print("IP address: ");
Serial.println(WiFi.localIP());

if (MDNS.begin("esp8266")) {
Serial.println("MDNS responder started");
}

server.on("/", handleRoot);

server.on("/inline", {
server.send(200, "text/plain", "this works as well");
});
server.on("/resetwifi", handleReset);
server.on("/pepe", pepe);
server.onNotFound(handleNotFound);

// server.begin();
server.begin();
Serial.println("HTTP server started");

}

void loop() {
// put your main code here, to run repeatedly:
server.handleClient();

}

=====================
INDEX.h

const char MAIN_page[] PROGMEM = R"=====(
<! DOCTYPE html>

</head>

DATOS DEL ATLETA

Nombre/Equipo

Femenino

Masculino

Edad

</html> )=====";

@alemori commented on GitHub (Dec 21, 2018): I went to Development branch dev/ondemandconfigportal, but only wifimanager is used there. I also wanted to compile the .ino and gave me errors, I guess the error is mine, because I do not know how to work with the development code. What I need is to be able to write the html interface using the ESP8266webserver facility. If there is any example that you can give me, I would appreciate it. I copy the code that I'm trying to make work, and for example when I invoke 192.168.4.1/pepepe, it doesn't give me anything back. #include <FS.h> // this needs to be first, or it all crashes and burns... #include <WiFiManager.h> // https://github.com/tzapu/WiFiManager #include <ESP8266WebServer.h> #include <ESP8266mDNS.h> #include "index.h" ESP8266WebServer server2(81); String s1 = MAIN_page; //Read HTML contents void handleRoot() { //server.setContentLength(CONTENT_LENGTH_UNKNOWN); server.send(200, "text/plain", "hello from esp8266!"); } void pepe(){ Serial.print("Entro a handleRoot"); //server.setContentLength(CONTENT_LENGTH_UNKNOWN); server.send(200, "text/html", s1); //Send web page } void handleReset() { //server.setContentLength(CONTENT_LENGTH_UNKNOWN); server.send(200, "text/plain", "Resetting!"); //Serial.println("diconnecting client and wifi"); //client.disconnect(); wifi_station_disconnect(); WiFiManager wifiManager; wifiManager.resetSettings(); ESP.reset(); } void handleNotFound(){ String message = "File Not Found\n\n"; message += "URI: "; message += server2.uri(); message += "\nMethod: "; message += (server2.method() == HTTP_GET)?"GET":"POST"; message += "\nArguments: "; message += server2.args(); message += "\n"; for (uint8_t i=0; i<server2.args(); i++){ message += " " + server2.argName(i) + ": " + server2.arg(i) + "\n"; } server2.send(404, "text/plain", message); } void setup() { // put your setup code here, to run once: Serial.begin(115200); Serial.println(); // Serial.setDebugOutput(true); //WiFiManager //Local intialization. Once its business is done, there is no need to keep it around WiFiManager wifiManager; //exit after config instead of connecting wifiManager.setBreakAfterConfig(true); //reset settings - for testing //wifiManager.resetSettings(); //tries to connect to last known settings //if it does not connect it starts an access point with the specified name //here "AutoConnectAP" with password "password" //and goes into a blocking loop awaiting configuration if (!wifiManager.autoConnect("AutoConnectAP", "password")) { Serial.println("failed to connect, we should reset as see if it connects"); delay(3000); ESP.restart(); delay(5000); } //if you get here you have connected to the WiFi Serial.println(""); Serial.print("Connected to "); Serial.print("IP address: "); Serial.println(WiFi.localIP()); if (MDNS.begin("esp8266")) { Serial.println("MDNS responder started"); } server.on("/", handleRoot); server.on("/inline", [](){ server.send(200, "text/plain", "this works as well"); }); server.on("/resetwifi", handleReset); server.on("/pepe", pepe); server.onNotFound(handleNotFound); // server.begin(); server.begin(); Serial.println("HTTP server started"); } void loop() { // put your main code here, to run repeatedly: server.handleClient(); } ===================== INDEX.h ====================== const char MAIN_page[] PROGMEM = R"=====( <! DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title> LED Control </title> <style> body { background-color: lightblue; } h1 { color: black; text-align: center; font-family: verdana; font-size: 190%; } h3 { color: black; text-align: center; font: verdana; font-size: 190%; } p { font-family: verdana; font-size: 120%; text-align: center; } p1 { font-family: verdana; font-size: 120%; text-align: center; } .button { background-color: #4CAF50; /* Green */ border: none; color: white; padding: 15px 32px; text-align: center; text-decoration: none; display: inline-block; font-size: 120%; } .button2 { background-color: rgb(0, 128, 255); /* Green */ border: none; color: white; padding: 15px 32px; text-align: center; text-decoration: none; display: inline-block; font-size: 120%; } #rcorners1 { border-radius: 25px; background: #73AD21; padding: 20px; width: 200px; height: 150px; } </style> </head> <div> <body> <form action='/inicio' method='post'> <h3> DATOS DEL ATLETA</h3> <br><br/> <p1> Nombre/Equipo <input name="Nombre" type="text" maxlength="50" size="50" /> </p1> <br><br/> <p1><input type="radio" name="genero" id = "radio1" value="femenino" checked> Femenino<br></p1> <br><br/> <p1><input type="radio" name="genero" id = "radio2" value="masculino"> Masculino<br></p1> <br><br/> <p1> Edad <input name="edad" type="text" maxlength="2" size="2" /> </p1> <br><br/><br><br/> <p><input name="bt" class = 'button' type="submit" /><p> </form> </div> <div> <script> var xhttp = new XMLHttpRequest(); xhttp.open("GET", "fechahora?valorfecha="+new Date().toLocaleString(), true); xhttp.send(); </script> </div> </body> </html> )=====";

kerem commented

2026-02-28 01:26:28 +03:00

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@tablatronix commented on GitHub (Dec 21, 2018):

The webserver is built in...

You either need to start your own webserver when wm is not running or out of scope, so the webservers do not clash.

or use the webserver provided by wm

It is in the example I noted

https://github.com/tzapu/WiFiManager/blob/development/examples/DEV/OnDemandConfigPortal/OnDemandConfigPortal.ino#L39

wm is used global, and the server is used, else use your own server when wm is unloaded.

also you didnt use code blocks in your comment, code is unreadable,

wm.setWebServerCallback(bindServerCallback); // we use this callback so we know the webserver is running

void bindServerCallback(){
  wm.server->on("/custom",handleRoute);
  // wm.server->on("/info",handleRoute); // can override wm!
}

void handleRoute(){
  Serial.println("[HTTP] handle route");
  wm.server->send(200, "text/plain", "hello from user code");
}

The alternative is do what others have and just change the webserver from private to public in the code an use the stable version of wm

Sorry there are no docs yet on this, it is new and obviously "in development"

@tablatronix commented on GitHub (Dec 21, 2018): The webserver is built in... You either need to start your own webserver when wm is not running or out of scope, so the webservers do not clash. or use the webserver provided by wm It is in the example I noted https://github.com/tzapu/WiFiManager/blob/development/examples/DEV/OnDemandConfigPortal/OnDemandConfigPortal.ino#L39 wm is used global, and the server is used, else use your own server when wm is unloaded. also you didnt use code blocks in your comment, code is unreadable, ```C++ wm.setWebServerCallback(bindServerCallback); // we use this callback so we know the webserver is running void bindServerCallback(){ wm.server->on("/custom",handleRoute); // wm.server->on("/info",handleRoute); // can override wm! } void handleRoute(){ Serial.println("[HTTP] handle route"); wm.server->send(200, "text/plain", "hello from user code"); } ``` The alternative is do what others have and just change the webserver from private to public in the code an use the stable version of wm Sorry there are no docs yet on this, it is new and obviously "in development"

kerem commented

2026-02-28 01:26:28 +03:00

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@alemori commented on GitHub (Dec 24, 2018):

I'm going to wait for it to be incorporated into the library, since I don't want to use the development banch. Thank you

@alemori commented on GitHub (Dec 24, 2018): I'm going to wait for it to be incorporated into the library, since I don't want to use the development banch. Thank you

kerem commented

2026-02-28 01:26:28 +03:00

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@tablatronix commented on GitHub (Dec 24, 2018):

You just have to change line of code if you want to do the later

@tablatronix commented on GitHub (Dec 24, 2018): You just have to change line of code if you want to do the later

kerem commented

2026-02-28 01:26:28 +03:00

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@sarmadsohaib commented on GitHub (Aug 3, 2022):

I am late on this but experiencing exactly the same problem. Can you please tell me how to change the webserver from private to public in the code?

@sarmadsohaib commented on GitHub (Aug 3, 2022): I am late on this but experiencing exactly the same problem. Can you please tell me how to change the webserver from private to public in the code?

kerem referenced this issue

2026-02-28 02:12:33 +03:00

[PR #661] [CLOSED] Update WiFiManager.template.html #1661

Rows
Columns

[GH-ISSUE #790] Wifimanager does not work with esp8266webserver #661

===================== INDEX.h

DATOS DEL ATLETA

=====================
INDEX.h