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  • Hash : 02905413
    Author : nntrab
    Date : 2016-02-09T18:01:00

    Add callback support for error pages
    
    The existing error pages are very basic and don't allow for
    multi-lingual support or for conformity with other pages in a web site.
    The aim of the callback functionality is to allow custom error pages to
    be supported for calls to evhttp_send_error() by both calling
    applications and Libevent itself.
    
    A backward-incompatible change has been made to the title of error pages
    sent by evhttp_send_error(). The original version of the function used
    the reason argument as part of the title. That might have unforeseen
    side-effects if it contains HTML tags. Therefore the title has been
    changed to always use the standard status text.
    
    An example of the error callback can be found in this
    [version](https://github.com/libevent/libevent/files/123607/http-server.zip)
    of the 'http-server' sample. It will output error pages with very bright
    backgrounds, the error code using a very large font size and the reason.
    
    Closes: #323 (cherr-picked from PR)