version metadata-plugin 1.1.0b
jenkins core v1.556
apache tomcat 7.0.52
jenkins acccessible at http://<IP>:8080/jenkins/

Steps to reproduce:

• Install clean jenkins
• Add metadata plugin
• Login
• Click Manage Jenkins
• Click Manage Nodes
• Click on "master"
• Click "Configure"
• Enable metadata
• Add string metadata item
• Enter any string in name field
• Click in value field

Observed behaviour:

• Apache 404 error displayed under metadata item

Expected Result:

• No errors displayed

Issue / Suggested Fix:

• Urls in the jelly files are using paths relative from server root, e.g. "/MetadataChecks/checkName". They should be using one of the Jenkins/Hudson URL variables such as ${rootURL} to obtain the correct address.