TinyMCE breaks Modx chuncks and snippets

[carlo-13]

Bug report

Summary

Hi there, there is a very annoying issue with the TinyMCE, every “backtics” and “&” are converted into html.

For example, this code:
[[!snippet? &input=`url/image.jpg` &options=`

When copied into TinyMCE looks like this
[[!snippet? &input=`url/image.jpg` &options=`

I’ve tried a few configurations, but nothing really works. Does anyone have any idea?

Step to reproduce

Just copy and paste any chunck snippet that has “backtics” or “&”.

Observed behavior

It's converted into html

Expected behavior

Chuncks and Snippet should not be converted into HTML

Environment

Modx 2.8, php 7.4

Solution I've tried with no luck

https://www.tiny.cloud/docs-4x/configure/content-filtering/#encodingtypes
https://www.tiny.cloud/docs-4x/configure/content-filtering/#encoding
https://www.tiny.cloud/docs-4x/configure/content-filtering/#custom_elements

[rthrash]

This issue has been mentioned on MODX Community. There might be relevant details there:

https://community.modx.com/t/paid-custom-fancybox-snippet-with-phpthumbon/4165/10

[Jako]

I can't reproduce this here. Please paste the snippet call into the TinyMCE field and open the source code window of TinyMCE with the Tools -> Source Code menu entry. If the backticks are not converted to &#96 in the source code window, the conversion happens during saving the resource.

[Jako]

The issue is valid for Snippet calls in HTML attributes:

<div class="[[!phpthumbon? &input=`https://via.placeholder.com/1920x1080.png` &options=`w=400&h=210&zc=1`]]">test</div>

is converted to

<div class="[[!phpthumbon? &amp;input=&#96;https://via.placeholder.com/1920x1080.png&#96; &amp;options=&#96;w=400&amp;h=210&amp;zc=1&#96;]]">Test</div>

Outside of an attribute only the ampersand is replaced (which will be parsed right in MODX):

<p>[[!phpthumbon? &input=`https://via.placeholder.com/1920x1080.png` &options=`w=400&h=210&zc=1`]]</p>

vs.

<p>[[!phpthumbon? &amp;input=`https://via.placeholder.com/1920x1080.png` &amp;options=`w=400&amp;h=210&amp;zc=1`]]</p>

I don’t think, that you can change the behaviour of TinyMCE to bypass that issue. You have to use MODX chunks for this use case.

[Jako]

I have tested the behaviour in TinyMCE RTE 1.4.0. The backticks are converted there too. Could you tell me which issues occur during parsing that content? Is it maybe a degression in MODX 2.x?