CachedFilesMixin Shouldn't Fail on Missing Files
|Reported by:||matthewwithanm||Owned by:||nobody|
|Has patch:||no||Needs documentation:||no|
|Needs tests:||no||Patch needs improvement:||no|
I appreciate the reasoning for the ValueError in hashed_name(), but I think they should be suppressed (converted to warnings) in the post_process() loop. A single bad URL shouldn't prevent you from collecting your other static files—especially when it may occur in a third party app.