Check_MK Werk 2090: Fixed errors when editing / rendering custom url dashlets in some cases

ID: 2090 Title: Fixed errors when editing / rendering custom url dashlets in some cases Component: Multisite Level: 1 Class: Bug Fix Version: 1.2.7i1 It was allowed to configure empty URL or empty URL function which lead to an exception when rendering the dashlet. A wrong URL was constructed for URLs which have no URL parameters.