[Privoxy-devel] filterable files

[Lee]

Maybe a web-caching server is misbehaving??  Can someone try going to
  http://i.imgur.com/Q8kV8.png
reloading the page & see if privoxy tries to filter it?

The first time I go there I get back a header with
  Content-Type: image/png
so privoxy doesn't try to filter it.  If I then click on reload, firefox adds a
  If-Modified-Since: Thu, 05 Jan 2012 15:10:40 GMT
header.  The response headers do not have a content type header, so
privoxy assumes it's filterable.

response headers from first request:
2017-06-07 12:18:45.427 00000fb8 Header: scan: HTTP/1.1 200 OK
2017-06-07 12:18:45.427 00000fb8 Header: scan: Last-Modified: Thu, 05
Jan 2012 15:10:40 GMT
2017-06-07 12:18:45.427 00000fb8 Header: scan: ETag:
"c7ad74dee03dc04f1e753e1b57433e11"
2017-06-07 12:18:45.442 00000fb8 Header: scan: Content-Type: image/png
2017-06-07 12:18:45.442 00000fb8 Header: Tagger 'content-type' added
tag 'image/png'. No action bits update necessary.
2017-06-07 12:18:45.442 00000fb8 Header: scan: cache-control: public,
max-age=31536000
2017-06-07 12:18:45.442 00000fb8 Header: scan: Content-Length: 111985
2017-06-07 12:18:45.458 00000fb8 Header: scan: Accept-Ranges: bytes
2017-06-07 12:18:45.458 00000fb8 Header: scan: Date: Wed, 07 Jun 2017
16:18:48 GMT
2017-06-07 12:18:45.458 00000fb8 Header: scan: Age: 277214
2017-06-07 12:18:45.458 00000fb8 Header: scan: Connection: keep-alive
2017-06-07 12:18:45.458 00000fb8 Header: scan: X-Served-By: cache-iad2631-IAD
2017-06-07 12:18:45.458 00000fb8 Header: scan: X-Cache: HIT
2017-06-07 12:18:45.458 00000fb8 Header: scan: X-Cache-Hits: 1
2017-06-07 12:18:45.473 00000fb8 Header: scan: X-Timer:
S1496852329.837179,VS0,VE3
2017-06-07 12:18:45.473 00000fb8 Header: scan: Vary: Accept
2017-06-07 12:18:45.473 00000fb8 Header: scan:
Access-Control-Allow-Methods: GET, OPTIONS
2017-06-07 12:18:45.473 00000fb8 Header: scan: Access-Control-Allow-Origin: *
2017-06-07 12:18:45.473 00000fb8 Header: scan: Server: cat factory 1.0
2017-06-07 12:18:45.473 00000fb8 Header: Keeping the server header
'Connection: keep-alive' around.
2017-06-07 12:18:45.473 00000fb8 Info: server_content_type:
Content-Type: image/png
2017-06-07 12:18:45.473 00000fb8 Header: csp->expected_content_length=111985
2017-06-07 12:18:45.489 00000fb8 Header: Adding: Proxy-Connection: keep-alive


response headers from the reload request:
2017-06-07 12:18:55.816 00000fb8 Header: scan: HTTP/1.1 304 Not Modified
2017-06-07 12:18:55.832 00000fb8 Header: scan: Date: Wed, 07 Jun 2017
16:18:59 GMT
2017-06-07 12:18:55.832 00000fb8 Header: scan: Cache-Control: public,
max-age=31536000
2017-06-07 12:18:55.847 00000fb8 Header: scan: ETag:
"c7ad74dee03dc04f1e753e1b57433e11"
2017-06-07 12:18:55.847 00000fb8 Header: scan: Age: 277224
2017-06-07 12:18:55.863 00000fb8 Header: scan: Connection: keep-alive
2017-06-07 12:18:55.863 00000fb8 Header: scan: X-Served-By: cache-iad2631-IAD
2017-06-07 12:18:55.879 00000fb8 Header: scan: X-Cache: HIT
2017-06-07 12:18:55.879 00000fb8 Header: scan: X-Cache-Hits: 2
2017-06-07 12:18:55.894 00000fb8 Header: scan: X-Timer:
S1496852339.150471,VS0,VE0
2017-06-07 12:18:55.894 00000fb8 Header: scan: Vary: Accept
2017-06-07 12:18:55.894 00000fb8 Header: scan:
Access-Control-Allow-Methods: GET, OPTIONS
2017-06-07 12:18:55.910 00000fb8 Header: scan: Access-Control-Allow-Origin: *
2017-06-07 12:18:55.910 00000fb8 Header: scan: Server: cat factory 1.0
2017-06-07 12:18:55.925 00000fb8 Header: Keeping the server header
'Connection: keep-alive' around.
2017-06-07 12:18:55.925 00000fb8 Info: buffer_and_filter_content set to 1

Thanks,
Lee