修改Tasmota 14.2.0代码后ESP8266 HTTP连接故障求助

问题概述 #

使用Tasmota 14.2.0版本固件，修改xdrv_01_9_webserver.ino文件内容后，ESP8266设备无法通过HTTP连接。除以下修改外，其余为标准配置且原运行正常。

具体修改内容 #

1. 嵌入的JavaScript函数 #

const char HTTP_SCRIPT_EZSALT[] PROGMEM = 
  "function transitionToEZsaltGo(){"
    "var mqttClient = \"%s\".trim();"  // Placeholder for mqtt_client
    "alert(mqttClient);"
    "alert(mqttClient.length);"
    "document.getElementById('btnTransitionToEZsaltGo').style.display = 'none';"
    "document.getElementById('divFinalStep').style.display = 'block';"
    "var countdown = 10;"
    "setInterval(function(){"
    "   countdown--;"
    "   document.getElementById('divFinalStep').innerHTML = 'Transferring to EZsaltGo<br>in ' + countdown + ' seconds...';"
    "   if(countdown < 1){"
    "      location.href = 'https://ezsaltgo.com/AddSensor.php?SensorID=XXXXX';"
    "   }"
    "}, 1000);"
  "}";

2. 注入TasmotaGlobal.mqtt_client到JS函数 #

char buffer[650];
snprintf_P(buffer, sizeof(buffer), HTTP_SCRIPT_EZSALT, TasmotaGlobal.mqtt_client);
WSContentSend_P(buffer);

3. 注入含调用按钮的HTML代码 #

WSContentSend_P(PSTR(D_SUCCESSFUL_WIFI_CONNECTION "<br><br></div><div style='text-align:center;'><button id='btnTransitionToEZsaltGo' onclick='transitionToEZsaltGo()'>Continue Setup</button><div id='divFinalStep' style='display: none'>Transferring to EZsaltGo<br>in 10 seconds...</div><br><br></div>"));

已知信息 #

• 按钮与JS逻辑在纯HTML页面测试正常
• 固件编译过程无报错
• 怀疑注入TasmotaGlobal.mqtt_client的步骤是故障诱因，但具体原因不明

求排查故障原因。

内容的提问来源于stack exchange，提问作者HerrimanCoder