Fixing the caching issue

app/templates/config.html

@@ -1,7 +1,7 @@
 {% extends "base.html" %}
 {% block title %}UPS Configuration{% endblock %}
 {% block head_extra %}
-<link rel="stylesheet" href="/static/css/config.css" />
+<link rel="stylesheet" href="/static/css/config.css?v=3" />
 {% endblock %}
 {% block content %}
 <div class="page-header">
@@ -22,8 +22,8 @@
     <form id="ups-form">
       <div class="form-group">
         <label for="ups-name">Name *</label>
-        <input type="text" id="ups-name" name="name" required pattern="[A-Za-z0-9_-]{1,32}" maxlength="32">
-        <small>1-32 alphanumeric, underscore, dash</small>
+        <input type="text" id="ups-name" name="name" required pattern="[A-Za-z0-9_.\- ]{1,32}" maxlength="32">
+        <small>1-32 chars (letters, digits, space, dot, underscore, dash)</small>
       </div>
       <div class="form-group">
         <label for="ups-host">Host/IP *</label>
@@ -84,5 +84,5 @@
 <div id="toast-container"></div>
 {% endblock %}
 {% block scripts %}
-<script src="/static/js/config.js"></script>
+<script src="/static/js/config.js?v=3"></script>
 {% endblock %}