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POOpenURI 403 Error on Heroku, Ruby on Rails 4
 

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  1. POOpenURI 403 Error on Heroku, Ruby on Rails 4
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    <p>I'm using Rails 4 with Ruby 2, deployed on Heroku. My application uses OpenURI to open a Webpage (then passes the HTML to Nokogiri for parsing). On my local machine this works fine; on Heroku, I receive a 403 Error when the program arrives at the line with the <code>open</code> method. I have already done the following:</p> <ul> <li>Required <code>open-uri</code> in my application</li> <li>Added the <code>'User-Agent'</code> key to my <code>open</code> method call</li> <li>Included all required Heroku compatibility gems in my Gemfile as specified <a href="https://devcenter.heroku.com/articles/getting-started-with-rails4#heroku-gems" rel="nofollow">here</a></li> </ul> <p>Here's the offending line:</p> <pre><code>doc = Nokogiri::HTML(open(url, 'User-Agent' =&gt; "Ruby/#{RUBY_VERSION}")) </code></pre> <p>Here are the relevant (I believe) Heroku logs:</p> <pre><code>2013-10-22T01:20:53.281117+00:00 app[web.1]: Started POST "/texts/parse" for 66. 31.247.63 at 2013-10-22 01:20:53 +0000 2013-10-22T01:20:53.281117+00:00 app[web.1]: Started POST "/texts/parse" for 66. 31.247.63 at 2013-10-22 01:20:53 +0000 2013-10-22T01:20:53.287518+00:00 app[web.1]: Processing by TextsController#parse as HTML 2013-10-22T01:20:53.287518+00:00 app[web.1]: Processing by TextsController#parse as HTML 2013-10-22T01:20:53.287692+00:00 app[web.1]: Parameters: {"utf8"=&gt;"???", "auth enticity_token"=&gt;"zKqzrI7qaDjav1HA56kdiNi01Mgbavg4Xhff+t4bDh0=", "url"=&gt;"http:// www.gutenberg.org/files/135/135-h/135-h.htm", "commit"=&gt;"Import"} 2013-10-22T01:20:53.287692+00:00 app[web.1]: Parameters: {"utf8"=&gt;"???", "auth enticity_token"=&gt;"zKqzrI7qaDjav1HA56kdiNi01Mgbavg4Xhff+t4bDh0=", "url"=&gt;"http:// www.gutenberg.org/files/135/135-h/135-h.htm", "commit"=&gt;"Import"} 2013-10-22T01:20:44.346845+00:00 heroku[web.1]: Starting process with command `b in/rails server -p 30331 -e $RAILS_ENV` 2013-10-22T01:20:53.536799+00:00 app[web.1]: Completed 500 Internal Server Error in 247ms 2013-10-22T01:20:53.536799+00:00 app[web.1]: Completed 500 Internal Server Error in 247ms 2013-10-22T01:20:53.537796+00:00 app[web.1]: 2013-10-22T01:20:53.537796+00:00 app[web.1]: OpenURI::HTTPError (403 Forbidden): 2013-10-22T01:20:53.537796+00:00 app[web.1]: app/controllers/texts_controller. rb:75:in `parse' 2013-10-22T01:20:53.537796+00:00 app[web.1]: 2013-10-22T01:20:53.537796+00:00 app[web.1]: 2013-10-22T01:20:53.537796+00:00 app[web.1]: 2013-10-22T01:20:53.537796+00:00 app[web.1]: OpenURI::HTTPError (403 Forbidden): 2013-10-22T01:20:53.537796+00:00 app[web.1]: app/controllers/texts_controller. rb:75:in `parse' </code></pre> <p>I've done a lot of searching and can't find a fix. Usually the problem is that people forget to require <code>'open-uri'</code> in their application. Any help is greatly appreciated.</p>
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    1. COI should also add that I investigated the default encoding of my application, and in my Heroku console it claims the application encodes in UTF-8 by default.
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