Configurable exception handling

[hovi]

If I try to run filters in templates (ex image.crop.300x300) using django tests with test client, I get an error if the image file is missing.
That is fine, but it complicates things for some types of automated tests we have. At some point we create fixtures based on our database and test if all pages are working. Some pages are crashing because image is physically missing for the test (which is correct), but it would be the easiest for this particular test to have silent failure.

Any chance this could get added as a configuration option? Happy to create PR if so.

[oliverhaas]

Would love to see that! We're currently working around that behavior as well.

If you start a PR, I will at least chime in, but I might have a go at it in the next month anyway.