Again - one of these “it takes several hours” to find it things:
In an inherited application that I’m expanding, I was using RJS actions to handle inserts:
page.insert_html :bottom, 'info_list', :partial => 'info' Because of some non-showing Umlauts, I switched on a filter to set the content type:
<code> class ApplicationController < ActionController::Base before_filter :set_charset def set_charset headers['Content - Type'] = "text/html; charset=8859-1" end end </code> with the result, that all my RJS stuff stopped working. Finally I diffed against a working copy and found the line enabling the filter. I rewrote it like this, and things started to work again
...