Camel Case HTML attributes are rewritten to lowercase by AEM

Whenever a component in AEM outputs an HTML tag with an attribute that has capital letters, it is converted to lowercase.  This affects the ability to use Angular 2 framework.

Environment

AEM 6.0, 6.1, 6.2

Cause

Capital letters are not recommended by the HTML specification.  However, Angular 2 framework choose to use camel cased attributes.  AEM product rewrites attributes to lowercase by design.

Resolution

In AEM6.3, this issue has been resolved.  A new feature was added to allow disabling the rewriting of attributes to lowercase. These new configurations are documented here.

Steps to apply the configuration: