关于tomcat7服务下面js无法获取JSESSIONID的cookie信息

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http://tomcat.apache.org/tomcat-5.5-doc/config/context.html  

Does anyone know what changed in the configuration between Tomcat 6 and Tomcat 7 that would cause the JSESSIONID cookie to not be accessible via JavaScript?

Using Tomcat 6:

alert(document.cookie); // JSESSIONID=8675309ABCDEF...

Using Tomcat 7:

alert(document.cookie); // nothing



the answer as follow:

Okay, I found the answer. The useHttpOnly attribute was set to false by default in Tomcat 6, and is true in Tomcat 7. This attribute is set for the <Context> container.

<Context useHttpOnly="false" [...] />

For more information about updating from Tomcat 6 to 7: Migrating from 6.0.x to 7.0.x

I‘m not sure why I didn‘t see that in the docs before, but I‘ve verified that setting this to false does in fact cause Tomcat 7 to revert to the Tomcat 6 behavior.

关于tomcat7服务下面js无法获取JSESSIONID的cookie信息

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原文地址：http://www.cnblogs.com/silentjesse/p/5128501.html