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Vaadin Forum3. Vaadin 6, 7, 8Framework UI

availability to know, that resource url in embedded returns 404error

Alexander Nikitin
1 decade ago Jun 28, 2012 1:58pm

How can i know, that resource url in embedded component is available? Not only in my domain, but in others too.
Thanks

Last updated on Jun, 28th 2012
Tobias Demuth
1 decade ago Jun 28, 2012 3:00pm

Don't really know, but I would say, that as Embedded of Type BROWSER just renders into an iFrame you cannot make sure that the URL is actually available. Only thing you could do is trying to connect to the URL via URL#getConnection() and check for a 404 yourself. Other solution might be some type of HTTP-client-library.