I tried to upload this AEM package file which contains this custom index xml file to help you understand better, but uploading xml files is not allowed.

@Jineet_Vora Thank you so much.

Thank you so much

Thank you so much.Your codes cover most of our requirement.

Thank you, Arun PatidarWe are going to use core components as much as possible.For this project related to core embed component for iframe, we want to use 2 parts from embed dialog- URL and HTML. Would you recommend how to archive this? Regards, 

After working with cloud version AEM instance, I can see the Site in the dropdown.Thanks,

I have same issue.

In cloud instance, adding <dependency> <groupId>xerces</groupId> <artifactId>xercesImpl</artifactId> <version>2.12.2</version> <scope>test</scope> </dependency> does not work for me.Changing version from 4.1.8 to 4.1.0 in root pom makes it work for me.  <dependency> <groupId>io.wcm</groupId> <...

If docker way not working to your local environment, why don't you try to use iis if you uses Windows.https://aemshack.com/aem-setup-5-install-dispatcher-on-iis/

Here are some general guidelines for writing JUnit tests for path-based Sling Servlets with a POST method: Set up the Servlet: Create a Sling Servlet and annotate it with the @SlingServlet annotation. The paths property in the annotation should specify the URL patterns that will trigger the servlet...