修改DEMO

Mobile12306New/Mobile12306New.csproj

@@ -80,7 +80,6 @@
     <Content Include="login.html" />
     <Content Include="query.html" />
     <Content Include="route.html" />
-    <Content Include="Web.config" />
     <Content Include="xhrdemo.html" />
   </ItemGroup>
   <ItemGroup />

Mobile12306New/Web.config

@@ -1,28 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<!--
-  有关如何配置 ASP.NET 应用程序的详细信息，请访问
-  http://go.microsoft.com/fwlink/?LinkId=169433
-  -->
-
-<configuration>
-  <connectionStrings></connectionStrings>
-
-  <system.web>
-    <compilation debug="true" targetFramework="4.0" />
-    <authentication mode="Forms">
-      <forms loginUrl="~/Account/Login" timeout="2880" defaultUrl="~/" />
-    </authentication>
-
-  </system.web>
-  <system.webServer>
-     <modules runAllManagedModulesForAllRequests="true"/>
-  </system.webServer>
-  
-
-  <runtime>
-    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">      
-    </assemblyBinding>
-  </runtime>
-  
-</configuration>

Mobile12306New/xhrdemo.html

@@ -60,7 +60,6 @@
 				}
 
 				delete queue[obj.id];
-				alert(obj.success);
 				if (obj.success) {
 					def.resolve(obj.result, {
 						headers: obj.headers,
@@ -120,7 +119,7 @@
 					return ajax.apply(this, arr);
 				},
 				getImage: function(url, refer) {
-					return return ajax("GET", url, "image", null, refer);
+					return ajax("GET", url, "image", null, refer);
 				}
 			}
 		})();
@@ -136,6 +135,7 @@
 			$("#loadImage").click(function () {
 				lbAjax.getImage("https://kyfw.12306.cn/otn/passcodeNew/getPassCodeNew?module=login&rand=sjrand", "https://kyfw.12306.cn/otn/login/init")
 					.done(function (data) {
+					alert(data);
 						$("#result").html("加载成功！<img src='data:image/png;base64," + data + "' />");
 					}).fail(function (data) {
 						$("#result").html("加载失败！" + data);