static (1)

Images not displayed unless site is refreshed

I faced a bit of puzzle today with Tomcat/Apache setup.
Tomcat is running in the background with Apache as frontend via mod_proxy_ajp. The site loads ok except for static files that return a 404 (File Not Found) on first load, then show up normally on refresh!

The apache configuration looks like the following:

Alias /static /var/www/static
ProxyPass /static !
ProxyPass / ajp://
ProxyPassReverse / ajp://

An example failing URL:;jsessionid=3892BC4B4C26073338268AF98ECA73D6
And in the error log I see the following:
[Fri Sep 06 10:18:14 2013] [error] [client] File does not exist: /var/www/static/images/email.png;jsessionid=3892BC4B4C26073338268AF98ECA73D6, referer[…]

Then it dawned on me that apache wouldn’t know about the jsessionid if it was not sent over to tomcat for processing. Since apache was handling static files the session id needed to go.

Solution: I added the following rewrite rule

        RewriteEngine On
        RewriteRule static/(.*);jsessionid=.* /static/$1 [R,L]

related searches I came across while googling:
page not found when including jsessionid in URL
;jsessionid and 404 File Not Found
Apache getting confused by encoded jsessionid’s (404 Not Found)

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