In prod mode, error page display does not take freemarker.suffix configuration into account

[akhawaja]

Hi Everyone. In "prod" mode, the framework does not take the configuration value of "freemarker.suffix" into consideration when showing the error template. For example, if the file 404notFound.ftl.html is renamed to "404notFound.ftl" and the application.conf file contains the freemarker.suffix value of ".ftl", the template is not used.