errors in PNG should result in PNG #61
Description
We should serve 500s as a PNG.
Traceback (most recent call last):
File "aspen/website.py", line 76, in handle_safely
response = self.handle(request)
File "aspen/website.py", line 109, in handle
response = request.resource.respond(request)
File "aspen/resources/dynamic_resource.py", line 47, in respond
exec self.pages[1] in context
File "/app/www/%first/%second.png.spt", line 76, in <module>
transformed = transform_and_cache(transform_key, first, second, color)
File "/app/www/%first/%second.png.spt", line 28, in transform_and_cache
first, second, color = transform(first, second, color) # expensive HTTP
File "shields_io/services.py", line 60, in gittip
receiving = float(json.loads(fp.read())['receiving'])
File "aspen/json_.py", line 95, in loads
return _json.loads(*a, **kw)
File "json/__init__.py", line 338, in loads
return _default_decoder.decode(s)
File "json/decoder.py", line 365, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "json/decoder.py", line 383, in raw_decode
raise ValueError("No JSON object could be decoded")
ValueError: No JSON object could be decoded