diff --git a/app/static/js/script.js b/app/static/js/script.js
index 009fc24b..f2e7970e 100644
--- a/app/static/js/script.js
+++ b/app/static/js/script.js
@@ -409,19 +409,21 @@ function showUploadConfig() {
 	let service = $('#service').val();
 	let configver = $('#configver').val();
 	let serv = $("#serv").val()
+	let jsonData = {
+		"serv": serv,
+		"configver": configver
+	}
 	$.ajax( {
 		url: "/config/" + service + "/show",
-		data: {
-			serv: serv,
-			configver: configver
-		},
+		data: JSON.stringify(jsonData),
+		contentType: "application/json; charset=utf-8",
 		type: "POST",
 		success: function( data ) {
-			if (data.indexOf('error:') != '-1') {
-				toastr.error(data);
+			if (data.status === 'failed') {
+				toastr.error(data.error);
 			} else {
 				toastr.clear();
-				$("#ajax").html(data);
+				$("#ajax").html(data.data);
 				window.history.pushState("Show config", "Show config", "/config/versions/" + service + "/" + serv + "/" + configver);
 				$.getScript(configShow);
 			}
diff --git a/app/templates/configver.html b/app/templates/configver.html
index 85288f6c..6aab2098 100644
--- a/app/templates/configver.html
+++ b/app/templates/configver.html
@@ -7,7 +7,7 @@
 		<form action="/config/versions/{{service}}/{{serv}}" method="post" class="left-space">
 			<input type="hidden" id="service" value="{{service}}">
 			{{ select('serv', values=g.user_params['servers'], is_servers='true', selected=serv) }}
-			<button type="submit" value="open" name="open" class="btn btn-default">{{lang.words.open|title()}}</button>
+            <a href="/config/versions/{{service}}/{{ serv }}" class="ui-button ui-widget ui-corner-all" title="Open versions">{{lang.words.open|title()}}</a>
 		</form>
 	</p>
 		<div id="config_version_div"></div>
diff --git a/app/templates/delver.html b/app/templates/delver.html
index 3702a127..6fd73144 100644
--- a/app/templates/delver.html
+++ b/app/templates/delver.html
@@ -11,8 +11,8 @@
 		<form action="{{ action }}" method="post" class="left-space">
 			<input type="hidden" value="{{service}}" name="service" id="service">
 			{{ select('serv', values=g.user_params['servers'], is_servers='true', selected=serv) }}
-				<a class="ui-button ui-widget ui-corner-all" title="Open versions" onclick="showListOfVersion(1)">{{lang.words.open|title()}}</a>
-				<a href="/config/{{service}}" class="ui-button ui-widget ui-corner-all" title="Configs page">{{lang.words.configs|title()}}</a>
+            <a class="ui-button ui-widget ui-corner-all" title="Open versions" onclick="showListOfVersion(1)">{{lang.words.open|title()}}</a>
+            <a href="/config/{{service}}" class="ui-button ui-widget ui-corner-all" title="Configs page">{{lang.words.configs|title()}}</a>
 			{% if service != 'keepalived' %}
 				<a class="ui-button ui-widget ui-corner-all" title="View stat" onclick="openStats()">{{lang.words.stats|title()}}</a>
 			{% endif %}