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<!-- EMBER_CLI_FASTBOOT_TITLE -->  <meta name="ember-cli-head-start" content>  <title>Loading / Error Substates - Routing - Ember Guides</title>

  <meta name="description" content="The Ember Router allows you to provide feedback that a route is loading, as well as when an error occurs in loading a route. loading substates 

During the beforeModel, model, and afterModel hooks, data may