40096 - Document sent as 'Content-type: text/plain' is interpreted as HTML

Status: VERIFIED DUPLICATE of bug 40060

(Core :: Networking, defect, P3)

Description

[John Morrison]

Overview Description:
 A minimal document sent as 'Content-type: text/plain' is interpreted as HTML
 if there is HTML in the text document.

 In addition, View Source interprets it as HTML (e.g., displays form controls
 instead of the source document)

 If no HTML is sent in the text document, then the result is a blank page.

 Not sure if this is Networking or Parser.
 
Steps to Reproduce:

1) Load http://jrgm.mcom.com/cgi-bin/bugs-misc/send-text-plain

2) Observe the result, and then try View Source on this page


Actual Results:
  HTML form controls are displayed (but none of the preceding ascii text).

Expected Results:
  This is a text document.

Reproducibility: always

Build Date & Platform Bug Found:
  2000052108 win32 (win2k) comm.
  2000052108 linux comm.
  2000052108 mac comm.
  2000051808 mozilla win2k

Additional Information:

This is the trivial perl source for this page. 

----------------------------------------------------------------------
#!/usr/bin/perl -w
#
# Sends a text/plain document (with only one
# header 'Content-type: text/plain'
#
 
print <<"ENDOFMESSAGE";
Content-type: text/plain
 
Here is some plain text that talks about some HTML
 
A form looks like ...
 
       <FORM METHOD="POST" ACTION="/cgi-bin/foobar">
         <SELECT NAME="arg">
           <OPTION VALUE="value 1">one option
           <OPTION VALUE="value 2">another option
         </SELECT>
         <INPUT TYPE="submit" VALUE="submit">
         </FORM>
 
ENDOFMESSAGE
----------------------------------------------------------------------

Comment 1

[Jesse Ruderman]

40060

Comment 2

[Sean Richardson]

Yep, this is a DUP of bug 40060, "text/plain displayed only if interpreted as 
HTML"... obviously Mozilla is guessing when it shouldn't be.

Beyond that, I'm about to submit a bug about the unknown content type guesser
being too aggressive in calling files text/html.

*** This bug has been marked as a duplicate of 40060 ***

Comment 3

[John Morrison]

verified dup