console.log（）已定义但未登录IE - 空控制台(console.log() is defined but doesn't log in IE - empty console)

 打开Developer Tools的 Internet Explorer（8和9）页面上的Javascript到达console.log() ， 它已定义 - 但实际日志中没有任何内容 。 
 
 事情尝试： 
 
 
 
 使用alert()双重检查，定义console并且console.log是一个函数。 
 
 
 在代码到达console.log()行之前和之后检查alert() s， 
 
 
 检查任何IE回退的代码，例如if(ie){console={log:function(){}}} ，删除指向库的链接并检查代码片段以提及console 
 
 
 检查IE的设置并启用与调试相关的任何内容 
 
 
 通过使用console.log() s加载第三方页面来检查IE是否已损坏（例如http://jsbin.com记录“init”和“runner”） 
 
 
 交换window.console console 
 
 
 因此，控制台处于活动状态，但实际控制台中没有控制台消息显示（在“脚本”选项卡或“控制台”选项卡上）。 
 
 还有什么可以阻止console.log()实际记录任何内容，即使Developer Tools已打开且console.log是已定义的函数？ 

Javascript on a page in Internet Explorer (8 and 9) with Developer Tools open reaches console.log(), which is defined - but nothing appears in the actual log.
 
Things tried:
 
 
 
Double-checking with alert()s that console is defined and that console.log is a function.
 
 
Checking with alert()s before and after that the code does reach the console.log() line, 
 
 
Checking code for any IE fallbacks like if(ie){console={log:function(){}}}, removing links to libraries and checking code snippets for mentions of console
 
 
Checking IE's settings and enabling anything relating to debugging
 
 
Checking that IE isn't broken by loading a 3rd party page with console.log()s (e.g. http://jsbin.com logs "init" and "runner")
 
 
Swapping console for window.console
 
 
So the console is there and active, but no console messages show up in the actual console (on either the Script tab or the Console tab).
 
What else could stop console.log() from actually logging anything, even when Developer Tools is open and console.log is a defined function?

原文：https://stackoverflow.com/questions/21321872