Transfer-encoding:chunked data is not sent to the client in its complementary

Solution Unverified - Updated -

Issue

  • When accessing a site using squid problem versions, the origin server content is not fully displayed

    # curl -x localhost:3128 http://192.168.1.1./sample.cgi -v
*   Trying ::1...
* TCP_NODELAY set
* Connected to localhost (::1) port 3128 (#0)
> GET http://192.168.1.1./sample.cgi HTTP/1.1
> Host: 192.168.1.123
> User-Agent: curl/7.61.1
> Accept: */*
> Proxy-Connection: Keep-Alive
>
< HTTP/1.1 200 OK
< Date: Mon, 26 Aug 2024 01:03:59 GMT
< Server: Apache
< Pragma: no-cache
< X-frame-options: SAMEORIGIN
< Content-Type: text/html; charset=UTF-8
< X-Cache: MISS from localhost.localdomain
< X-Cache-Lookup: MISS from localhost.localdomain:3128
< Transfer-Encoding: chunked
< Via: 1.1 localhost.localdomain (squid/4.15)
< Connection: keep-alive
<
<!DOCTYPE html>
<html xmlns:fb="http://abcd.sample.com/" lang="ja">

...snip...

<div id="password-field" class="field field-top-label ">
    <div class="field-header">
* Connection #0 to host localhost left intact
      <label id="password-label" for="password">

  • In the case previous versions (squid-4.15-7.module+el8.9.0+19703+a1da7223.x86_64 and squid-5.5-6.el9.x86_64),
    The content is displayed correctly

    # curl -x localhost:3128 http://192.168.1.1./sample.cgi -v
*   Trying ::1...
* TCP_NODELAY set
* Connected to localhost (::1) port 3128 (#0)
> GET http://192.168.1.1./sample.cgi HTTP/1.1
> Host: 192.168.1.123
> User-Agent: curl/7.61.1
> Accept: */*
> Proxy-Connection: Keep-Alive
>
< HTTP/1.1 200 OK
< Date: Mon, 26 Aug 2024 01:03:59 GMT
< Server: Apache
< Pragma: no-cache
< X-frame-options: SAMEORIGIN
< Content-Type: text/html; charset=UTF-8
< X-Cache: MISS from localhost.localdomain
< X-Cache-Lookup: MISS from localhost.localdomain:3128
< Transfer-Encoding: chunked
< Via: 1.1 localhost.localdomain (squid/4.15)
< Connection: keep-alive
<
<!DOCTYPE html>
<html xmlns:fb="http://abcd.sample.com/" lang="ja">

...snip...

/* ]]> */
</script>
</body>
</html>

* Connection #0 to host localhost left intact

Environment

  • Red Hat Enterprise Linux (RHEL) 8
  • from squid-4.15-7.module+el8.9.0+20571+8d39338b.1.x86_64 to squid-4.15-10.module+el8.10.0+21552+1e381b3b.x86_64
  • Red Hat Enterprise Linux (RHEL) 9
  • from squid-5.5-6.el9_3.1.x86_64 to squid-5.5-14.el9.x86_64.

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