嗨，我的问题有点奇怪。我的$.ajax success handler如下：
function(data){
alert(data);
}
很简单，是吧？
问题是无论服务器发送了什么，数据总是3个字符长！ 字符：31 65535 8（使用charCodeAt()），不过在其他浏览器（甚至在IE 8中）都可以正常工作，我已经在完整的处理程序中查看了xhr.responseText，也是相同的结果。
完整的http响应：
HTTP/1.1 200 OK
Date: Sun, 07 Feb 2010 13:35:39 GMT
Server: Apache/2.2.12 (Ubuntu)
X-Powered-By: PHP/5.2.10-2ubuntu6.4
Set-Cookie: 1111111111111111=UjVXb1Q3WTdUIQ8jXmALbA88VzpRcVcgBzMDcldyUmtWawAyAFpQP1IwASEAbFh%2FDjoLZ1RiBWlWdwBnUGMHZlU2UGBTZFA5B2UMMlJgC29SbVdjVDRZOVRsDzReaQtuDzpXZVFjV2UHYwM1VzNSNlYzAG4AMVAwUjUBIQBsWH8OOgtlVGAFaVZ3AD5QIgdcVWVQNlNhUHIHMAwjUiQLL1JvVyZUOVk8VGkPal54C2wPNVcyUX1XYgdgAzlXL1IzVioAbQA3UG9SdgE4ACRYNg4xC2RUagVxViAAJFA3B3FVW1AzU2JQZQc7DCRSdQs2UidXb1Q2WT1UYA9yXhcLMg92V2lRP1c%2FBzcDLlc1UixWNAB8AC1QNVI7AW4AJ1htDnQLPVQyBT9WMABsUHIHTlVXUBtTQFAgB20MflJnCzZSdFcCVGpZY1Q%2BDz9eLQsuDyxXTlEHV3MHYAMvVzBSOVYmAGcAdlBsUmUBMABtWC4ObAs1VCMFJ1YKADZQMQd3VW1QJFNsUHQHLAxyUmwLflJuV2RUM1k3VHgPYV5oC2sPOVc1UWdXagdgAzBXOVIgVj8AIQ%3D%3D; expires=Tue, 07-Feb-2012 13:35:39 GMT; path=/
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 21
Keep-Alive: timeout=15, max=100
Connection: Keep-Alive
Content-Type: text/html
1
通过在.htaccess中禁用gzip来解决。
The characters you get look weird, but could it be that it's a BOM? It's none of the ones listed in the article, but maybe getCharCode() gets something wrong.
In that case, you would have to check the script you call to request the data. Try saving it explicitly without a BOM.
this is most times an problem with propper encoding of the requested content / displayed content.
Please verify that both use the same format.
Despite ajax is always done in UTF-8 some implementations are weird and they don't allow passing non ascii characters. You have to change them to entities.
If You pass only one character and still get problems - It might be the BOM mentioned by Pekka. You would have to save Your PHP FILE without any spaces before
Second thing is that You might be outputing something at the end of the php file.