Hi, Options: 1) Use different urls for different images 2) disable caching for the IResource. See https://github.com/apache/wicket/blob/a1c83cbc9cba919cf0106ff5b7c5fa69cac27ef7/wicket-core/src/main/java/org/apache/wicket/request/resource/AbstractResource.java#L458
Martin Grigorov Wicket Training and Consulting https://twitter.com/mtgrigorov On Sun, May 17, 2015 at 3:39 PM, Chris <chris...@gmx.at> wrote: > Hi all, > > If the user clicks on a certain button, I am dynamically generating an > image and mount this as follows: http://www.domain.com/facebook/UUID.png < > http://www.domain.com/facebook/UUID.png>. After that, the JS function > below is called. > > I am using the Facebook feed dialog in order to open the share dialog. > Although I am providing unique picture URLs, Facebook always shows an old > image (from the cache) and not the one from the URL. > Does anyone know a hint how to force Facebook to use the picture from the > URL in its share dialog? > https://developers.facebook.com/docs/sharing/reference/feed-dialog/v2.3 < > https://developers.facebook.com/docs/sharing/reference/feed-dialog/v2.3> > > Thanks, Chris > > <script type="text/javascript"> > function shareMessage(link) { > > FB.ui( > { > method: 'feed', > name: some name, > link: 'some link', > picture: link, > caption: link, > description: "some description", > message: '' > }); > } > > </script> > >
