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Editorial Team
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Asked: 2026-06-16T02:56:43+00:00

My code is this: $.getJSON(/somefolder/somefile.json?+urlParams, function(json) { //populate combo here }); I’m working on

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My code is this:

$.getJSON("/somefolder/somefile.json?"+urlParams, function(json) {
    //populate combo here
});

I’m working on Rails, using sass and the file I have this code in is originally a file.js although to work with pipeline assets I already changed it to file.js.erb

In Dev I’m working in http://localhost:XXXX so results are OK.
In Prod I’m using a folder http://domain.com:XXXX/app so the results goes badways.

Coding like <%=image_tag("loading.gif", :class => "loading")%> works perfectly in this file but $.getJSON("<%= controller_method_path %>.json?"+urlParams does not

Any suggestion?

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1 Answer

  1. Editorial Team

    Assuming your routes are setup to use a prefix in production, you should be using the actual routing methods for the full path.

    $.getJSON("<%= thingies_url(@thingy, :json) %>?"+urlParams, ...

    Now the entire path should be generated properly in all cases.

    But craziness like this is why it’s usually not recommend to run rails apps in a subdirectory of a domain. It makes routing and relative links to other pages and assets much more of a headache.

    If you can host the rails app on a subdomain instead.

    # not awesome :(
http://mydomain.com/myapp

# totally awesome! :D
http://myapp.mydomain.com/
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