Unable to edit Tinymce editor content in element in XanaduDescriptionIn washington, when users added a details element to the text editor in an article and saved it, an open="open" property was getting automatically applied/injected into the details element.This allowed users to read and edit the contents in the element.This no longer happens in Xanadu and prevents users from editing specific parts of articles outside of the source code.See Washington VS Xanadu screenshot.Steps to Reproduce 0. Hop into OOB Washington instance (akeemallenwashington)1. Create a new article or edit an existing one.2. Use the source code button "<>" in the WYSIWYG to add the following HTML<div><details><summary>Macbooks</summary><div>Come content here</div></details><details><summary>Question 2</summary><div>This is the content of Question 2.</div></details><details><summary>Question 3</summary><div>This is the content of Question 3.</div></details></div>3. Save the article4. Observe that the dropdowns are open and the content is visible.5. Repeat steps 1 - 3 in an OOB Xanadu instance (allenxanadu)6. Observe that the dropdowns are closed, and you are unable to edit the contentsWorkaroundIn Washington instance we are using tinymce v5 version. In this version if we add details element with summary tags as mentioned in STR and save, all the details sections will be by default in opened state and we will not be able to close them from outside the source code, although being opened, we will be able to edit the sections including inner summary sections.In Xanadu instance we are using tinymce v6 version. In this version if we add details element with summary tags as mentioned in STR and save, all the details sections will be by default in closed state and we will not be able to open them from outside the source code , so we will not be able to edit the inner summary sections. But in this v6 version, tinymce has introduced accordion plugin, which is by default available in oob instance. If this is enabled from system properties, we will get buttons once any details element gets clicked, to open and delete the detail element. So we can open the details section on clicking of this open button and accordingly edit the inner sections. If we want to make these accordions be in open state on save then we can pass open (open = "open") attribute to make them open by default as in below screenshot - After clicking on save the first detail will appear open as in below screenshot - Although this accordion plugin is enabled by default in OOB instance, these are the steps to ensure this plugin is active for instance and the specific field - We need to ensure accordion plugin is added in the below system properties for Xanadu instance -glide.ui.html.editor.enabled_pluginsglide.ui.html.editor.valid_pluginsand if dictionary attribute(editor.plugins) is added like it is added for this field in this form then accordion plugin should be added there also. This is change introduced from the tinymce side from v5 to v6 version and it is expected. This will appear from Xanadu release.Related Problem: PRB1869650