WebPromise broken when Interceptor present (Grails 3.3.9)

[rrsdev]

With Grails 3.3.9 and it's compatible async plugin.

When a grails web Interceptor with a namespace selector is present, a WebPromise causes a server exception due to a null when calling getControllerName().

See the sample project at https://github.com/rrsdev/grails-async-interceptor

Example URLs would be:

• http://localhost:8080/data/news - broken
• http://localhost:8080/feed/news - broken
• http://localhost:8080/data/news2 - ok
• http://localhost:8080/feed/news2 - ok

If you delete or rename the secured.async.AuthorizationInterceptor class then all URLs work.