Fix templating errors, js errors

sqrl/static/sqrl/dropin.css

@@ -0,0 +1,19 @@
+.sqrl-parent {
+    padding: 15px;
+    background-color: #fff;
+    text-align: center;
+    max-width: 300px;
+    border-radius: 5%;
+}
+#sqrl-qr img {
+    margin: auto;
+    width: 100%;
+    padding-top: 3px;
+}
+.sqrl-wrap a {
+    font-size: 50%;
+}
+
+.sqrl-form input {
+    margin: auto;
+}

sqrl/static/sqrl/sqrl.js

@@ -2,8 +2,10 @@
   var get_next_url   = function() {
           // A Next defined in the URL has priority
           var urlparam = document.URL.match(/next=([^&#]+)/)
-          if (urlparam.length == 2) {
-            return urlparam[1]
+          if (urlparam) {
+            if (urlparam.length == 2) {
+              return urlparam[1]
+            }
           }
           // Next highest priority is a defined SQRL_NEXT
           if (typeof SQRL_NEXT !== "undefined") {