Headmark on first chapter page with scrlayer-scrpage

How can I make KOMA-Script package scrlayer-scrpage add a header to every page, even the pages where a new chapter starts?

I got this MWE:

\documentclass[a4paper, 12pt, ngerman, oneside]{scrreprt}

\begin{document}
\chapter{Chapter}
\section{Section}
\newpage
\section{2nd Section}
\end{document}


Which adds a header to every page except the pages where a chapter begins.

The first page of an chapter is formated with style plain.scrheadings so you need to define it.

One possibility is to use something like \chead*{\leftmark}. The asterix marks that also style plain.scrheadings has to be changed too.

Please see the following MWE

\documentclass[a4paper, 12pt, ngerman, oneside]{scrreprt}

\usepackage[%
automark
]{scrlayer-scrpage}

\clearpairofpagestyles % <==============================================


• Why not using \chapterpagestyle? – Johannes_B Jul 17 '18 at 5:25