I'm trying to use this with a Vaadin 14 spring starter app. I can see from

Directory Cross Site Embedder
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I’m trying to use this with a Vaadin 14 spring starter app.

I can see from the logfile that it’s loaded correctly:

2019-09-06 15:50:19.481  INFO 2495 --- [ost-startStop-1]
 org.vaadin.artur.cors.CorsFilter         : Allowing embedding from: http://localhost:8080
2019-09-06 15:50:19.481  INFO 2495 --- [ost-startStop-1]
 org.vaadin.artur.cors.CorsFilter         : Initialized org.vaadin.artur.cors.CorsFilter

However, when I try to serve up the webcomponent from a localhost server, it’s still rejected.

Any suggestions to what might be wrong?
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