[ ijbswa-Bugs-3614431 ] multiple server-header-filter wrong matching position

Bugs item #3614431, was opened at 2013-06-09 03:08
Message generated for change (Tracker Item Submitted) made by jakwings
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Category: funct: header manipulation
Group: version 3.0.21
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Jak Wings (jakwings)
Assigned to: Nobody/Anonymous (nobody)
Summary: multiple server-header-filter wrong matching position

Initial Comment:
Privoxy Version: 3.0.21
OS: Linux

Just see the example below.

------ filter --------
SERVER-HEADER-FILTER: sf-no-frames Block Frames
s@(?:\r\n)?X-FRAME-OPTIONS:.*?$@@gsi
s@^HTTP.*$@$0\r\nX-FRAME-OPTIONS: SAMEORIGIN@

SERVER-HEADER-FILTER: sf-csp CSP
s@(?:\r\n)?Content-Security-Policy:.*?$@@gsi
#1
#s@^HTTP.*$@$0\r\nContent-Security-Policy: default-src 'none'; script-src 'self'@
#2
s@^Date.*$@$0\r\nContent-Security-Policy: default-src 'none'; script-src 'self'@

------ action --------
{ +server-header-filter{sf-no-frames} \
  +server-header-filter{sf-csp-weibo-sina} }

------ server headers ------
HTTP/1.1 200 OK
Server: nginx
Date: Sun, 09 Jun 2013 10:03:08 GMT

------ result with #1 -------
HTTP/1.1 200 OK
X-FRAME-OPTIONS: SAMEORIGIN
Server: nginx
Date: Sun, 09 Jun 2013 10:03:08 GMT

------ result with #2 -------
HTTP/1.1 200 OK
X-FRAME-OPTIONS: SAMEORIGIN
Server: nginx
Date: Sun, 09 Jun 2013 10:03:08 GMT
Content-Security-Policy: default-src 'none'; script-src 'self'

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