How to add Access-Control-Allow-Origin to jetty server

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Setup the org.eclipse.jetty.servlets.CrossOriginFilter in your web app.

Old question/answer on the topic: https://stackoverflow.com/a/8454168/775715

See Jetty Documentation Hub on CrossOriginFilter Use:

Quick Start

  1. Grab yourself a copy of jetty-servlets.jar.

  2. Put the jetty-servlets.jar in your WEB-INF/lib

  3. Add the following to your WEB-INF/web.xml

<filter>
    <filter-name>cross-origin</filter-name>
    <filter-class>org.eclipse.jetty.servlets.CrossOriginFilter</filter-class>
    <init-param>
        <param-name>allowedOrigins</param-name>
        <param-value>*</param-value>
    </init-param>
    <init-param>
        <param-name>allowedMethods</param-name>
        <param-value>GET,POST,HEAD</param-value>
    </init-param>
    <init-param>
        <param-name>allowedHeaders</param-name>
        <param-value>X-Requested-With,Content-Type,Accept,Origin</param-value>
    </init-param>
</filter>
<filter-mapping>
    <filter-name>cross-origin</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

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