Yahoo Images Problem: Images are displaying correctly, but the website preview below the images is not displaying correctly – 403 Forbidden Error is displayed. The Google Image retreival issue may or may not exist since a documented error was not captured, but if you are experiencing a similar error with Google images then this security filter will most likely be the cause of the issue/problem.
Cause/Issue: The Referer String contains angle brackets < > and the url encoded equivalent to angle brackets is %3C and %3E
RewriteCond %{HTTP_REFERER} (%0A|%0D|%27|%3C|%3E|%00) [NC,OR]
Solution: Remove %3C and %3E from the root .htaccess file security filter that is shown above. Your modified security filter should now look like this below.
RewriteCond %{HTTP_REFERER} (%0A|%0D|%27|%00) [NC,OR]
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