You can better use @self to point to the resource

Sometimes I explain data-sly-template as a HTML-function ( you can call it multiple times, pass in parameters etc).data-sly-include is to include other html/jsp resources.

${currentPage.template} only works with the right permissions, nothing to do with the dispatcher.Basically: never use getTemplate() 

What about changing the dispatcher config, to not allow POSTs in /content?Or changing permissions of a group that authors belong to.

Couple of things from my side:- try to use the expressions first, rather than writing code- some logic can be written in just a couple of lines in JavaScript- if you need to write code use SlingModels, WCMUsePojo is harder to reuse/test- avoid <sly />, data-sly-unwrap and stick with the HTML output ...

JavaDoc: https://docs.adobe.com/docs/en/aem/6-1/ref/javadoc/com/day/cq/dam/api/Asset.html

This is included in AEM6.1, where Oak is the implementation of JCR.

This is because the restriction of the use node types, in your case you can use sling:Folder too.

You can just replace the background-color with an expression, like : ${properties.backgroundColor}

This is also a great use-case for data-sly-repeat, no need for the wrapping <sly> element.