Scenario

Each REST endpoint accepts a specific set of parameters for PUT requests. Only valid parameters are accepted for processing.

In some cases, due to a network requirement, an extra parameter is injected into a PUT request e.g. a Web Application Firewall might add a parameter to enhance XSRF protection. In such a case, JIRA will reject the request as a bad request (400 error) because it can't recognize the parameter.

Example: this error is thrown when attempting to edit a Version:

{"errorMessages":["Unrecognized field \"__ncforminfo\" (Class com.atlassian.jira.rest.v2.issue.version.VersionBean), not marked as ignorable\n at [Source: org.apache.catalina.connector.CoyoteInputStream@3afdb7ed; line: 1, column: 119] (through reference chain: com.atlassian.jira.rest.v2.issue.version.VersionBean[\"__ncforminfo\"])"]}

Suggestion

Add the ability to ignore unrecognized parameters for PUT (maybe POST as well) requests.