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v1.5.0 fixing issue with slow browsers, etc.
### Releases v1.5.0 1. Fix issue with slow browsers or network. Check [Target stops responding after variable time when using Firefox on Windows 10 #3](khoih-prog/AsyncWebServer_RP2040W#3) 2. Add functions and example `Async_AdvancedWebServer_favicon` to support `favicon.ico`
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‎Async_AdvancedWebServer_favicon/Async_AdvancedWebServer_favicon.ino

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/****************************************************************************************************************************
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Async_AdvancedWebServer.ino
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For Teensy41 with QNEthernet
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AsyncWebServer_Teensy41 is a library for the Teensy41 with QNEthernet
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Based on and modified from ESPAsyncWebServer (https://github.com/me-no-dev/ESPAsyncWebServer)
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Built by Khoi Hoang https://github.com/khoih-prog/AsyncWebServer_Teensy41
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Licensed under GPLv3 license
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Copyright (c) 2015, Majenko Technologies
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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Redistributions in binary form must reproduce the above copyright notice, this
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list of conditions and the following disclaimer in the documentation and/or
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other materials provided with the distribution.
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Neither the name of Majenko Technologies nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************************************************************/
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#if !( defined(CORE_TEENSY) && defined(__IMXRT1062__) && defined(ARDUINO_TEENSY41) )
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#error Only Teensy 4.1 supported
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#endif
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// Debug Level from 0 to 4
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#define _TEENSY41_ASYNC_TCP_LOGLEVEL_ 1
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#define _AWS_TEENSY41_LOGLEVEL_ 1
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#define SHIELD_TYPE "Teensy4.1 QNEthernet"
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#if (_AWS_TEENSY41_LOGLEVEL_ > 3)
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#warning Using QNEthernet lib for Teensy 4.1. Must also use Teensy Packages Patch or error
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#endif
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#define USING_DHCP true
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//#define USING_DHCP false
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#if !USING_DHCP
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// Set the static IP address to use if the DHCP fails to assign
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IPAddress myIP(192, 168, 2, 222);
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IPAddress myNetmask(255, 255, 255, 0);
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IPAddress myGW(192, 168, 2, 1);
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//IPAddress mydnsServer(192, 168, 2, 1);
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IPAddress mydnsServer(8, 8, 8, 8);
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#endif
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#include "QNEthernet.h" // https://github.com/ssilverman/QNEthernet
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using namespace qindesign::network;
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#include "favicon.h"
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#include <AsyncWebServer_Teensy41.h>
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AsyncWebServer server(80);
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int reqCount = 0; // number of requests received
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const int led = 13;
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#define BUFFER_SIZE 512
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char temp[BUFFER_SIZE];
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void handleRoot(AsyncWebServerRequest *request)
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{
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digitalWrite(led, 1);
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int sec = millis() / 1000;
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int min = sec / 60;
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int hr = min / 60;
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int day = hr / 24;
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snprintf(temp, BUFFER_SIZE - 1,
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"<html>\
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<head>\
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<meta http-equiv='refresh' content='5'/>\
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<title>AsyncWebServer-%s</title>\
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<style>\
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body { background-color: #cccccc; font-family: Arial, Helvetica, Sans-Serif; Color: #000088; }\
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</style>\
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</head>\
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<body>\
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<h2>AsyncWebServer_Teensy41!</h2>\
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<h3>running on %s</h3>\
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<p>Uptime: %d d %02d:%02d:%02d</p>\
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<img src=\"/test.svg\" />\
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</body>\
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</html>", BOARD_NAME, BOARD_NAME, day, hr % 24, min % 60, sec % 60);
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request->send(200, "text/html", temp);
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digitalWrite(led, 0);
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}
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void drawFavicon(AsyncWebServerRequest *request)
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{
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AsyncWebServerResponse *response = request->beginResponse(200, "image/x-icon", favicon_ico_gz, favicon_ico_gz_len);
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response->addHeader("Content-Encoding", "gzip");
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request->send(response);
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}
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void handleNotFound(AsyncWebServerRequest *request)
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{
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digitalWrite(led, 1);
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String message = "File Not Found\n\n";
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message += "URI: ";
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message += request->url();
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message += "\nMethod: ";
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message += (request->method() == HTTP_GET) ? "GET" : "POST";
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message += "\nArguments: ";
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message += request->args();
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message += "\n";
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for (uint8_t i = 0; i < request->args(); i++)
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{
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message += " " + request->argName(i) + ": " + request->arg(i) + "\n";
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}
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request->send(404, "text/plain", message);
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digitalWrite(led, 0);
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}
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void drawGraph(AsyncWebServerRequest *request)
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{
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String out;
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out.reserve(4000);
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char temp[70];
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out += "<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\" width=\"310\" height=\"150\">\n";
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out += "<rect width=\"310\" height=\"150\" fill=\"rgb(250, 230, 210)\" stroke-width=\"2\" stroke=\"rgb(0, 0, 0)\" />\n";
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out += "<g stroke=\"blue\">\n";
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int y = rand() % 130;
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for (int x = 10; x < 300; x += 10)
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{
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int y2 = rand() % 130;
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sprintf(temp, "<line x1=\"%d\" y1=\"%d\" x2=\"%d\" y2=\"%d\" stroke-width=\"2\" />\n", x, 140 - y, x + 10, 140 - y2);
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out += temp;
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y = y2;
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}
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out += "</g>\n</svg>\n";
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request->send(200, "image/svg+xml", out);
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}
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void setup()
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{
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pinMode(led, OUTPUT);
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digitalWrite(led, 0);
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Serial.begin(115200);
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while (!Serial && millis() < 5000);
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delay(200);
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Serial.print("\nStart Async_AdvancedWebServer_favicon on "); Serial.print(BOARD_NAME);
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Serial.print(" with "); Serial.println(SHIELD_TYPE);
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Serial.println(ASYNC_WEBSERVER_TEENSY41_VERSION);
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delay(500);
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#if USING_DHCP
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// Start the Ethernet connection, using DHCP
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Serial.print("Initialize Ethernet using DHCP => ");
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Ethernet.begin();
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#else
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// Start the Ethernet connection, using static IP
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Serial.print("Initialize Ethernet using static IP => ");
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Ethernet.begin(myIP, myNetmask, myGW);
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Ethernet.setDNSServerIP(mydnsServer);
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#endif
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if (!Ethernet.waitForLocalIP(5000))
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{
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Serial.println(F("Failed to configure Ethernet"));
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if (!Ethernet.linkStatus())
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{
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Serial.println(F("Ethernet cable is not connected."));
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}
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// Stay here forever
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while (true)
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{
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delay(1);
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}
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}
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else
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{
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Serial.print(F("Connected! IP address:")); Serial.println(Ethernet.localIP());
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}
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#if USING_DHCP
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delay(1000);
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#else
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delay(2000);
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#endif
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server.on("/", HTTP_GET, [](AsyncWebServerRequest * request)
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{
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handleRoot(request);
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});
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server.on("/test.svg", HTTP_GET, [](AsyncWebServerRequest * request)
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{
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drawGraph(request);
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});
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server.on("/favicon.ico", HTTP_GET, [](AsyncWebServerRequest * request)
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{
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drawFavicon(request);
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});
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server.on("/inline", [](AsyncWebServerRequest * request)
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{
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request->send(200, "text/plain", "This works as well");
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});
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server.onNotFound(handleNotFound);
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server.begin();
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Serial.print(F("HTTP EthernetWebServer is @ IP : "));
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Serial.println(Ethernet.localIP());
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}
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void loop()
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{
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}

‎Async_AdvancedWebServer_favicon/favicon.h

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/*! \file
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\brief Favicon stored in progmem.
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`#include "favicon.h"` then
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@code
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// Serve favicon from PROGMEM: #include <favicon.h>
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HTTP.on("/favicon.ico", HTTP_GET, [](AsyncWebServerRequest * request) {
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AsyncWebServerResponse *response = request->beginResponse_P(200, "image/x-icon", favicon_ico_gz, favicon_ico_gz_len);
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response->addHeader("Content-Encoding", "gzip");
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request->send(response);
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});
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@endcode
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*/
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#pragma once
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/*
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Provided from me-no-dev Async WebServer for ESP8266
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https://github.com/me-no-dev/ESPAsyncWebServer
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*/
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//File: favicon.ico.gz, Size: 726
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#define favicon_ico_gz_len 726
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const uint8_t favicon_ico_gz[] /*PROGMEM*/ =
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{
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0x1F, 0x8B, 0x08, 0x08, 0x0B, 0x87, 0x90, 0x57, 0x00, 0x03, 0x66, 0x61, 0x76, 0x69, 0x63, 0x6F,
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0x6E, 0x2E, 0x69, 0x63, 0x6F, 0x00, 0xCD, 0x53, 0x5F, 0x48, 0x9A, 0x51, 0x14, 0xBF, 0x62, 0x6D,
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0x86, 0x96, 0xA9, 0x64, 0xD3, 0xFE, 0xA8, 0x99, 0x65, 0x1A, 0xB4, 0x8A, 0xA8, 0x51, 0x54, 0x23,
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0xA8, 0x11, 0x49, 0x51, 0x8A, 0x34, 0x62, 0x93, 0x85, 0x31, 0x58, 0x44, 0x12, 0x45, 0x2D, 0x58,
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0xF5, 0x52, 0x41, 0x10, 0x23, 0x82, 0xA0, 0x20, 0x98, 0x2F, 0xC1, 0x26, 0xED, 0xA1, 0x20, 0x89,
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0x04, 0xD7, 0x83, 0x58, 0x20, 0x28, 0x04, 0xAB, 0xD1, 0x9B, 0x8C, 0xE5, 0xC3, 0x60, 0x32, 0x64,
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0x0E, 0x56, 0xBF, 0x9D, 0xEF, 0xF6, 0x30, 0x82, 0xED, 0xAD, 0x87, 0xDD, 0x8F, 0xF3, 0xDD, 0x8F,
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0x73, 0xCF, 0xEF, 0x9C, 0xDF, 0x39, 0xBF, 0xFB, 0x31, 0x26, 0xA2, 0x27, 0x37, 0x97, 0xD1, 0x5B,
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0xCF, 0x9E, 0x67, 0x30, 0xA6, 0x66, 0x8C, 0x99, 0xC9, 0xC8, 0x45, 0x9E, 0x6B, 0x3F, 0x5F, 0x74,
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0xA6, 0x94, 0x5E, 0xDB, 0xFF, 0xB2, 0xE6, 0xE7, 0xE7, 0xF9, 0xDE, 0xD6, 0xD6, 0x96, 0xDB, 0xD8,
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0xD8, 0x78, 0xBF, 0xA1, 0xA1, 0xC1, 0xDA, 0xDC, 0xDC, 0x2C, 0xEB, 0xED, 0xED, 0x15, 0x9B, 0xCD,
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0xE6, 0x4A, 0x83, 0xC1, 0xE0, 0x2E, 0x29, 0x29, 0x99, 0xD6, 0x6A, 0xB5, 0x4F, 0x75, 0x3A, 0x9D,
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0x61, 0x75, 0x75, 0x95, 0xB5, 0xB7, 0xB7, 0xDF, 0xC8, 0xD1, 0xD4, 0xD4, 0xF4, 0xB0, 0xBA, 0xBA,
41+
0xFA, 0x83, 0xD5, 0x6A, 0xFD, 0x5A, 0x5E, 0x5E, 0x9E, 0x28, 0x2D, 0x2D, 0x0D, 0x10, 0xC6, 0x4B,
42+
0x98, 0x78, 0x5E, 0x5E, 0xDE, 0x95, 0x42, 0xA1, 0x40, 0x4E, 0x4E, 0xCE, 0x65, 0x76, 0x76, 0xF6,
43+
0x47, 0xB5, 0x5A, 0x6D, 0x4F, 0x26, 0x93, 0xA2, 0xD6, 0xD6, 0x56, 0x8E, 0x6D, 0x69, 0x69, 0xD1,
44+
0x11, 0x36, 0x62, 0xB1, 0x58, 0x60, 0x32, 0x99, 0xA0, 0xD7, 0xEB, 0x51, 0x58, 0x58, 0x88, 0xFC,
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0xFC, 0x7C, 0x10, 0x16, 0x02, 0x56, 0x2E, 0x97, 0x43, 0x2A, 0x95, 0x42, 0x2C, 0x16, 0x23, 0x33,
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0x33, 0x33, 0xAE, 0x52, 0xA9, 0x1E, 0x64, 0x65, 0x65, 0x71, 0x7C, 0x7D, 0x7D, 0xBD, 0x93, 0xEA,
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0xFE, 0x30, 0x1A, 0x8D, 0xE8, 0xEC, 0xEC, 0xC4, 0xE2, 0xE2, 0x22, 0x6A, 0x6A, 0x6A, 0x40, 0x39,
48+
0x41, 0xB5, 0x38, 0x4E, 0xC8, 0x33, 0x3C, 0x3C, 0x0C, 0x87, 0xC3, 0xC1, 0x6B, 0x54, 0x54, 0x54,
49+
0xBC, 0xE9, 0xEB, 0xEB, 0x93, 0x5F, 0x5C, 0x5C, 0x30, 0x8A, 0x9D, 0x2E, 0x2B, 0x2B, 0xBB, 0xA2,
50+
0x3E, 0x41, 0xBD, 0x21, 0x1E, 0x8F, 0x63, 0x6A, 0x6A, 0x0A, 0x81, 0x40, 0x00, 0x94, 0x1B, 0x3D,
51+
0x3D, 0x3D, 0x42, 0x3C, 0x96, 0x96, 0x96, 0x70, 0x7E, 0x7E, 0x8E, 0xE3, 0xE3, 0x63, 0xF8, 0xFD,
52+
0xFE, 0xB4, 0xD7, 0xEB, 0xF5, 0x8F, 0x8F, 0x8F, 0x5B, 0x68, 0x5E, 0x6F, 0x05, 0xCE, 0xB4, 0xE3,
53+
0xE8, 0xE8, 0x08, 0x27, 0x27, 0x27, 0xD8, 0xDF, 0xDF, 0xC7, 0xD9, 0xD9, 0x19, 0x6C, 0x36, 0x1B,
54+
0x36, 0x36, 0x36, 0x38, 0x9F, 0x85, 0x85, 0x05, 0xAC, 0xAF, 0xAF, 0x23, 0x1A, 0x8D, 0x22, 0x91,
55+
0x48, 0x20, 0x16, 0x8B, 0xFD, 0xDA, 0xDA, 0xDA, 0x7A, 0x41, 0x33, 0x7E, 0x57, 0x50, 0x50, 0x80,
56+
0x89, 0x89, 0x09, 0x84, 0xC3, 0x61, 0x6C, 0x6F, 0x6F, 0x23, 0x12, 0x89, 0xE0, 0xE0, 0xE0, 0x00,
57+
0x43, 0x43, 0x43, 0x58, 0x5E, 0x5E, 0xE6, 0x9C, 0x7D, 0x3E, 0x1F, 0x46, 0x47, 0x47, 0x79, 0xBE,
58+
0xBD, 0xBD, 0x3D, 0xE1, 0x3C, 0x1D, 0x0C, 0x06, 0x9F, 0x10, 0xB7, 0xC7, 0x84, 0x4F, 0xF6, 0xF7,
59+
0xF7, 0x63, 0x60, 0x60, 0x00, 0x83, 0x83, 0x83, 0x18, 0x19, 0x19, 0xC1, 0xDC, 0xDC, 0x1C, 0x8F,
60+
0x17, 0x7C, 0xA4, 0x27, 0xE7, 0x34, 0x39, 0x39, 0x89, 0x9D, 0x9D, 0x1D, 0x6E, 0x54, 0xE3, 0x13,
61+
0xE5, 0x34, 0x11, 0x37, 0x49, 0x51, 0x51, 0xD1, 0x4B, 0xA5, 0x52, 0xF9, 0x45, 0x26, 0x93, 0x5D,
62+
0x0A, 0xF3, 0x92, 0x48, 0x24, 0xA0, 0x6F, 0x14, 0x17, 0x17, 0xA3, 0xB6, 0xB6, 0x16, 0x5D, 0x5D,
63+
0x5D, 0x7C, 0x1E, 0xBB, 0xBB, 0xBB, 0x9C, 0xD7, 0xE1, 0xE1, 0x21, 0x42, 0xA1, 0xD0, 0x6B, 0xD2,
64+
0x45, 0x4C, 0x33, 0x12, 0x34, 0xCC, 0xA0, 0x19, 0x54, 0x92, 0x56, 0x0E, 0xD2, 0xD9, 0x43, 0xF8,
65+
0xCF, 0x82, 0x56, 0xC2, 0xDC, 0xEB, 0xEA, 0xEA, 0x38, 0x7E, 0x6C, 0x6C, 0x4C, 0xE0, 0xFE, 0x9D,
66+
0xB8, 0xBF, 0xA7, 0xFA, 0xAF, 0x56, 0x56, 0x56, 0xEE, 0x6D, 0x6E, 0x6E, 0xDE, 0xB8, 0x47, 0x55,
67+
0x55, 0x55, 0x6C, 0x66, 0x66, 0x46, 0x44, 0xDA, 0x3B, 0x34, 0x1A, 0x4D, 0x94, 0xB0, 0x3F, 0x09,
68+
0x7B, 0x45, 0xBD, 0xA5, 0x5D, 0x2E, 0x57, 0x8C, 0x7A, 0x73, 0xD9, 0xED, 0xF6, 0x3B, 0x84, 0xFF,
69+
0xE7, 0x7D, 0xA6, 0x3A, 0x2C, 0x95, 0x4A, 0xB1, 0x8E, 0x8E, 0x0E, 0x6D, 0x77, 0x77, 0xB7, 0xCD,
70+
0xE9, 0x74, 0x3E, 0x73, 0xBB, 0xDD, 0x8F, 0x3C, 0x1E, 0x8F, 0xE6, 0xF4, 0xF4, 0x94, 0xAD, 0xAD,
71+
0xAD, 0xDD, 0xDE, 0xCF, 0x73, 0x0B, 0x0B, 0xB8, 0xB6, 0xE0, 0x5D, 0xC6, 0x66, 0xC5, 0xE4, 0x10,
72+
0x4C, 0xF4, 0xF7, 0xD8, 0x59, 0xF2, 0x7F, 0xA3, 0xB8, 0xB4, 0xFC, 0x0F, 0xEE, 0x37, 0x70, 0xEC,
73+
0x16, 0x4A, 0x7E, 0x04, 0x00, 0x00
74+
};

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