A wiki I use put <tabber> inside {{navbox}}. One of the navbox that has state=collapsed slightly breaks after the rewrite in https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/commit/bb110c6d982f250c914818e6899272798ca0944d (v2.1.0): Only the header of tabber (<header class="tabber__header">) appear after clicking the "[show]" link of navbox. The body part (<section class="tabber__section">) is not visible because it gets style="height: 0px;". The body shows up after clicking any tab link in the header.
A wiki I use put
<tabber>inside{{navbox}}. One of the navbox that hasstate=collapsedslightly breaks after the rewrite in https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/commit/bb110c6d982f250c914818e6899272798ca0944d (v2.1.0): Only the header of tabber (<header class="tabber__header">) appear after clicking the "[show]" link of navbox. The body part (<section class="tabber__section">) is not visible because it getsstyle="height: 0px;". The body shows up after clicking any tab link in the header.The direct cause is the container of navbox content bears
display: nonewhen it's collapsed. Therefore its children do not have layout info when TabberNeue initialized at: https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/blob/82328dbeca60576b611c24d3c74d33566c18d682/modules/ext.tabberNeue/ext.tabberNeue.js#L136I'm not sure if it's a use case that should be supported. Nevertheless it should count as a regression.