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avatar radioagent
radioagent
16 Jun 2026

Steps to reproduce the issue

  1. Create new article
  2. Toggle tiny editor to the sourcecode mode
  3. insert next simplest code:

<form action="/submit" method="get"><input type="hidden" name="charset"> <button>Send</button></form>

  1. Toggle editor to WYSYWIG mode again
  2. Toggle editor to sourcecode mode again
  3. look on source code

Expected result

i should see absolutely same code:
<form action="/submit" method="get"><input type="hidden" name="charset"> <button>Send</button></form>

Actual result

But i see changed code without name propertie in input field:

<form action="/submit" method="get"><input type="hidden"> <button>Send</button></form>

System information

Joomla! Version Joomla! 5.4.6 Stable [ Kutegemea ] 26-May-2026 16:00 GMT
Joomla Backward Compatibility Plugin Enabled ()
PHP Version 8.4.22
PHP Built On Linux vm2406100887 5.15.0-152-generic
Database Type mysql
Database Version 8.0.46-0ubuntu0.22.04.2
Database Server Supports Connection Encryption Yes
Web Server Apache/2.4.68 (Ubuntu)
WebServer to PHP Interface apache2handler
User Agent Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:151.0) Gecko/20100101 Firefox/151.0

Additional comments

For administrator group i turned off text filtration complitely in global settings of Joomla.
To reproduce error is not necessary to save article.
As result of this error i can't use subscription forms from e-mail service.

avatar radioagent radioagent - open - 16 Jun 2026
avatar radioagent radioagent - change - 16 Jun 2026
Labels Removed: ?
avatar joomla-cms-bot joomla-cms-bot - change - 16 Jun 2026
Labels Added: No Code Attached Yet
avatar joomla-cms-bot joomla-cms-bot - labeled - 16 Jun 2026
avatar brianteeman
brianteeman - comment - 16 Jun 2026

For the joomla text filter settings to work you need to make sure you have set it to be used in the tinymce plugin otherwise you are using the default behaviour of tinymce over which we have no control

avatar radioagent
radioagent - comment - 16 Jun 2026

For the joomla text filter settings to work you need to make sure you have set it to be used in the tinymce plugin otherwise you are using the default behaviour of tinymce over which we have no control

Yes, i checked it before. In tinyMCE Joomla Text Filter=Yes

If somebody has same problem, there is workaround: sourcerer plugin which allows to protect code from filter.

avatar brianteeman
brianteeman - comment - 16 Jun 2026

I have just checked upstream with tinymce and this is not part of its filters its part of the tinymce attempt at code cleanup/validation. So in short there is nothing that we can do to change that with core joomla

avatar radioagent
radioagent - comment - 16 Jun 2026

I have just checked upstream with tinymce and this is not part of its filters its part of the tinymce attempt at code cleanup/validation. So in short there is nothing that we can do to change that with core joomla

thank you for fast check. Should i close this issue? i do not know rules :)

i will try to report to tinymce.

avatar radioagent
radioagent - comment - 16 Jun 2026

PS
i tried to check this issue here:
https://fiddle.tiny.cloud/
tried on 6.8.6 version of tinymce and problem was not repeated.

avatar brianteeman
brianteeman - comment - 16 Jun 2026

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