fix encode url
</jsp:include>
<div id="content" class="content-wrapper">
- <iframe id="contentFrame" src="<%=request.getContextPath()%>${serverPath}/_plugin/kopf/" seamless></iframe>
+ <iframe id="contentFrame" src="<%=request.getContextPath()%>${serverPath}<%= response.encodeURL("/_plugin/kopf/") %>" seamless></iframe>
</div>
<jsp:include page="/WEB-INF/view/common/admin/footer.jsp"></jsp:include>
