I am trying to filter items in an RSS feed so that only items with properly formatted images are included. I have successfully used a Filter to ensure that an item has an image. Some images have a space in the URL and I also want to exclude these from the final feed. Unfortunately, when I use the Filter Module to Block items that Contain %20 nothing happens.
It seems like the percent sign % is the problem. If I just use the "20" as the filtering parameter, then all items are excluded because the date is also part of the URL (ie: /2013/). If I use the "%20" then nothing is excluded.