示例情况： 我的控制器mysite.sk/profil/5中有bug。我的网站显示/ error500，没关系，但是...我修复了这个bug，但是当我在我的谷歌浏览器中打开mysite.sk/profil/5时，它显示我/ error500。当我在firefox或其他计算机上打开它时，一切都好，并向我展示profil页面。我和乘客使用瘦服务器，webrick和apache，我有同样的问题。
这是我的日志：
# I repaired bug
Started GET "/" for 10.10.13.80 at 2012-06-05 09:19:22 +0200
Processing by IndexController#index as HTML
Rendered index/_top_article.html.erb (4.6ms)
Rendered index/_side_bar.html.erb (0.0ms)
Rendered index/index.html.erb within layouts/index (5.1ms)
Completed 200 OK in 16ms (Views: 7.6ms | ActiveRecord: 1.3ms)
# I clicked on link /profil/6
Started GET "/error500" for 10.10.13.80 at 2012-06-05 09:19:27 +0200
Processing by ErrorsController#handle500 as HTML
Rendered errors/handle500.html.erb within layouts/index (0.2ms)
Completed 200 OK in 8ms (Views: 6.4ms | ActiveRecord: 0.1ms)