Unwanted text string "data-cke-xxxxxxx..xx" before text starting with "on..."

[tenchiro]

After upgrading to Chamilo 1.11.28, strange texts started appearing when creating NEW text-based articles. In my case, when I create a new "Rich Media Page" in Documents. (Based on comments from this link, the same 'bug' also affects QUIZ.)

The text always has the prefix of 'data-cke-alphanumeric'. I first noticed it before any word with "online" (Ex. 1).

• Ex. 1: I am o, I am data-cke-67993840babdd-on, I am data-cke-67993840babdd-one, I am data-cke-67993840babdd-online.

After subsequent testing, I can now confirm the texts will appear (appended to) any word that begins with 'on'. See examples below:

-Ex. 2: I am ob oc od oe of og oh oi oj ok ol om data-cke-679938d3e33cb-on oo op oq or os ot ou ov ow ox oy oz data-cke-679938d3e33cb-on

Notice that in Ex.2, only words starting with 'on...' are affected.
Editing the Rich Media -- i.e., removing the 'data-cke-...." may correct the error, but sometime, the bug may persist.

Any help on this problem is appreciated. Users (students) are noticing the error texts 'bug' and it is embarrassing in class.

[Raymond-Onwude]

This issue appears to be related to a bug in the CKEditor used by Chamilo 1.11.28, where unwanted data-cke-* attributes are appended to words beginning with "on" (likely due to an event handler or attribute misinterpretation). To resolve this issue, try the following steps:

1. Update CKEditor or Apply a Patch

• Navigate to Chamilo's main/inc/lib/ckeditor/ directory and check the current CKEditor version.
• Download the latest stable version of CKEditor from https://ckeditor.com/ and replace the existing directory.
• Clear your browser and platform cache after the update.

2. Disable Automatic Data Attributes (Optional Fix)

If updating CKEditor is not an immediate option, inspect the editor settings in Chamilo (editor_config.js or configuration options). Disable the use of custom data attributes by tweaking the CKEditor configuration:

config.allowedContent = true;
config.extraAllowedContent = '*[*]';

3. Temporary Workaround

Manually clean up the data-cke-* tags if they persist by switching to the source view in CKEditor and removing the extra code.

4. Report to Chamilo Community

If the problem persists, file an issue on the Chamilo GitHub page to request a permanent patch.

Let me know if you need guidance on any of these steps.

[ITYourCompany]

In my case, I don't have the ckeditor installed in the location that you mentioned.
I am still having this issue without a workaround or solution.

[ywarnier]

Hi, this was a bug introduced in 1.11.28 to avoid a security issues. We have fixed it since then and the fix will be available in 1.11.30 (hopefully before the end of February). This only affects the "on" keyword, so it disproportionately affects English speakers. Sorry about that, we saw it too late, just after the release of 1.11.28.

I believe those are the 2 commits that fix the issue, but you'd have to test them to make sure:

• 241c569
• 82cc07e

[ITYourCompany]

We have the word 'on' also in Dutch.
Thank you for the reply and I will certainly install the update as soon as it's out.

[tenchiro]

I did find the temporary fix (82cc07e) after my initial bug report, and have applied it with good effect. So the bug is taken care of for now. Looking forward to the 1.11.30. Thanks!