249164 - XML tags not displayed in textarea form elements when documents are served as application/xhtml+xml

Status: RESOLVED INVALID

(Core :: Layout: Form Controls, defect)

Description

[Andrew Taumoefolau]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7) Gecko/20040624 Epiphany/1.2.6
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7) Gecko/20040624 Epiphany/1.2.6

When an XHTML document is served as application/xhtml+xml, xml tags and their
contents are not displayed in textareas. For example, the following content:

"The quick brown <animal>fox</animal> jumps over the lazy brown <em>dog</em>."

displays as:

"The quick brown  jumps over the lazy brown ."

When the form is submitted, the latter sentence is what is sent (ack! Data
loss!). When documents are served as text/html, the text appears and is sent as
first written.

Reproducible: Always
Steps to Reproduce:
1. Serve XHTML document containing textarea, which in turn contains some XML
tags, as application/xhtml+xml
2. Note that tags are not displayed (they are visible in source, however);
submit the form.
3. At server side, note that you've been sent XML-tagless content from textarea.
Actual Results:  
No tags are displayed; content is submitted tagless.

Expected Results:  
Displayed the tags; submitted complete content.

Comment 1

[Hixie (not reading bugmail)]

This is correct behaviour. Putting elements inside <textarea> blocks is highly
invalid. If you want "<" characters you have to escape them ("&lt;").