Fetching items with Backbone seems to ignore the id passed in - backbone.js

Question

I have these routes in my webservice and I can hit either of them directly through the browser and I return the correct value.
app.get('/repairs', repair.findAll);
app.get('/repairs/:id', repair.findById);
When I ask Backbone to do this I am unexpectedly getting a call to
app.get('/repairs', repair.findAll);
when I expect it to reach
app.get('/repairs/:id', repair.findById);
The piece of code that appears to be calling "/repairs" rather than "/repairs/:id" is
var EditRepair = Backbone.View.extend({
el : '.page',
render : function(options) {
var scope = this;
var repair = new Repair({id: options.id});
//This has the correct id
console.log(options.id);
//I would expect this to call /repairs/12344312
//However it calls /repairs
repair.fetch({
success : function(repair){
var template = _.template($('#edit-repair-template').html(), {repair : repair});
scope.$el.html(template);
}
});
}
});
var Repair = Backbone.Model.extend({
urlRoot : 'repairs'
});
var Router = Backbone.Router.extend({
routes: {
'edit/:id' : 'editRepair'
}
});
var editRepair = new EditRepair();
var router = new Router();
router.on('route:editRepair', function(id) {
console.log('Edit Id : ' + id);
editRepair.render({id:id});
});
The options.id can be console.logged and shows the correct id of the item. I've had a few issues so far with the difference between _id in mongodb and id in backbone which I have worked around but for the life of me I cannot see why this is issuing a call to repairs and not repairs/id.
Any help appreciated.

Answer 1

My fault, I had an ajax prefilter that was encoding the uri components.
This was messing up the requests being issued.
$.ajaxPrefilter( function( options, originalOptions, jqXHR ) {
options.url = "http://localhost:3000/" + encodeURIComponent( options.url );
console.log(options.url);
});
Changed to
$.ajaxPrefilter( function( options, originalOptions, jqXHR ) {
options.url = "http://localhost:3000/" + options.url;
console.log(options.url);
});