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The My Rails app gives me a blank screen without HTML.

I have an application that I have not worked with in a month or so. I just tried to pull it up and it only gives me a blank screen. I work in dev mode and keep track of the log. The log shows that everything is in order as it processes the corresponding controller and views.

There are no errors in the nginx log. How can I eliminate what is happening? This is a Rails 3.0.9 application.

This is the problem of the Passenger. Unfortunately, the Passenger does not write any errors that I see in the magazines. I also get 200 from nginx. I have never seen anything returning HTML without errors at all.

Update: this is the result of curl -I http://mcp.com (note that I have mcp.com with an alias of localhost)

HTTP/1.1 200 OK
Content-Type: text/html; charset=utf-8
Content-Length: 0
Connection: keep-alive
Status: 200
X-Powered-By: Phusion Passenger (mod_rails/mod_rack) 3.0.7
ETag: "17676b3c3d3b322365c8d431f62f944b"
X-UA-Compatible: IE=Edge,chrome=1
X-Runtime: 9.088870
Set-Cookie: _mcp5_session=BAh7CCIQX2NzcmZfdG9rZW4iMVNGRHZ1WVNLZFRIeTh1Sm1lNytyVEU3TkhmQU1pVWZSdXBud2htcFRHSGs9IhRlbnRyeV9zdWJkb21haW4iACIPc2Vzc2lvbl9pZCIlMjA1NGIxNTRmN2M2NTQyNDU1ZTVmZjExYzRjNDhlMTY%3D--c3d21d4bb07a4989243b655aff3d49863d8c81f7; domain=.mcp.com; path=/; HttpOnly
Cache-Control: max-age=0, private, must-revalidate
Server: nginx/1.1.4 + Phusion Passenger 3.0.7 (mod_rails/mod_rack)
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