Where can I find VAADIN/vaadinBootstrap.js?

My application is complaining it cannot load

./VAADIN/vaadinBootstrap.js

Where can I find this file?

Thanks!

Have you mapped your application to something else than /* in your deployment descriptor (web.xml)? If so, you will also have to map the /VAADIN/* url-pattern for the same servlet. Please see reference from Book of Vaadin, section 4.8.3
https://vaadin.com/book/-/page/application.environment.html


    <servlet-mapping>
        <servlet-name>myservlet</servlet-name>
        <url-pattern>/myurl/*</url-pattern>
    </servlet-mapping>

    <servlet-mapping>
        <servlet-name>myservlet</servlet-name>
        <url-pattern>/VAADIN/*</url-pattern>
    </servlet-mapping>

I’m guessing the file is not found due to misconfigured mapping.

That works! Many thanks!

I forget about /VAADIN/* and threw this day in the bin.