Show 404 pages for unknown crates/versions #4156
Merged
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Instead of redirecting back to a known URL and showing a notification message, we now stay on the requested URL and show an error page instead.
(though with "Crate/Version not found" instead)
The implementation is a little questionable, but due to the way the
error
substates in Ember.js work I've found no other way to implement this.This PR is based on #4154.