Please refer this sample code for your requirement. You have to add similar in your component JS file for example : ui.frontend\src\components\Text\Text.js const TextEditConfig = { emptyLabel: 'Text', isEmpty: function(props) { return !props || !props.text || props.text.trim().length < ...

In experience fragment component, when you search for fragment, it allows to add the variation of the experience fragment. I can see in above images, Fragments are available to be selected. Where exactly you are not able to select them? You can refer below screenshot. Right most are the variation of...

The issue looks like more of browser cache. I followed the same and it works fine after clearing the cache. Please clean browser cache or try in different browser. Screenshot of configuration working fine for me.    

If you are using AEM token authentication or SAML, you can update this configuration : /system/console/configMgr/org.apache.jackrabbit.oak.security.authentication.token.TokenConfigurationImpl and set desired value for Token Expiration field. You don't need to write code to handle timeout in this cas...

SDI appends nocahe.html which is identified at dispatcher level to avoid caching the HTML. Below is the rule added at dispatcher level. { /glob "*.nocache.html*" /type "deny" }

For mix:referenceable you can refer this community page  https://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager/what-is-mix-referenceable-in-aem/td-p/542234  

No its not necessary. jcr:uuid property is getting added due to the jcr:mixinTypes = mix:referenceable added on the asset. Assets that are not published also would have jcr:uuid property if mix:referenceable mixinType is present. Please refer this link for more details related to jcr:uuid : https://...

Slow queries could be due to following reasons : Index not availableResult is hugeQuery using different indexes to collect data You can examine your query in Query performance tool in AEM. It will guide you if your query is using any index or not with other details. Path for same is /libs/granite/op...

In case you are using ACS Commons, you can achieve it by using Query Packager. SQL2 Query for same would be  SELECT * FROM [cq:Page] AS page WHERE ISDESCENDANTNODE(page, "/content/we-retail/us/en/products") AND name() like "%shorts%" Link : https://adobe-consulting-services.github.io/acs-aem-commons...

Can you please check if the left-container is getting created inside the initial of the template(templates/template-name/initial/jcr:content/root/container/left-container). If that is the case, you can remove it from initial page of the template. This will lock left-container and wont allow editing ...