How to enable CORS in apache tomcat [duplicate]

Question

This question already has answers here:

Set CORS header in Tomcat (4 answers)

Closed 7 years ago.

I am trying to consume some web services which are cross domain. When I disable chrome's web-security it is working fine. I want it to work without this so I have tried adding cross-domain.xml and still it didnt work. When i searched more, came to know about CORS enabling in tomcat.

from http://www.w3.org/wiki/CORS_Enabled

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For Apache Apache can be configured to expose this header using mod_headers. This is enabled by default in Apache, however you may want to ensure it's enabled in your deployment by running the following command:

a2enmod headers

To expose the header, you can add the following line inside , , and sections, or within an .htaccess file.

<IfModule mod_headers.c>
   Header set Access-Control-Allow-Origin "*"
 </IfModule>

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Can anyone please let me know where to add these configurations in TOMCAT and in which files exactly. I am using tomcat from eclipse.

Appreciate any help.

Answer 1

CORS support in Tomcat is provided via a filter. You need to add this filter to your web.xml file and configure it to match your requirements. Full details on the configuration options available can be found in the Tomcat Documentation.

Answer 2

Check this answer: Set CORS header in Tomcat

Note that you need Tomcat 7.0.41 or higher.

To know where the current instance of Tomcat is located try this:

System.out.println(System.getProperty("catalina.base"));

You'll see the path in the console view.

Then look for /conf/web.xml on that folder, open it and add the lines of the above link.

Answer 3

Just to add a bit of extra info over the right solution. Be aware that you'll need this class org.apache.catalina.filters.CorsFilter. So in order to have it, if your tomcat is not 7.0.41 or higher, download 'tomcat-catalina.7.0.41.jar' or higher ( you can do it from http://mvnrepository.com/artifact/org.apache.tomcat/tomcat-catalina ) and put it in the 'lib' folder inside Tomcat installation folders. I actually used 7.0.42 Hope it helps!