Fixed JS helpers causing wrong url to be shown in the url bar when a …

…form is submitted

It was e.g. showing /CreatePost instead of /NewPost. Now when the user refreshes the page, the `GET /CreatePost` request will fail and trigger an error. Instead the url should not have been updated to begin with.

lib/IHP/static/helpers.js

@@ -196,10 +196,11 @@ window.submitForm = function (form, possibleClickedButton) {
             for (var pair of formData.entries()) {
                 url.searchParams.set(pair[0], pair[1]);
             }
-            urlPathnameWithQuery += url.search; // Append the query parameters submitted via the form
         }
+        urlPathnameWithQuery += url.search; // Append the query parameters submitted via the form
 
-        var responseUrlPathName = new URL(request.responseURL).pathname
+        var responseUrl = new URL(request.responseURL);
+        var responseUrlPath = responseUrl.pathname + responseUrl.search;
 
         if (window.Turbolinks) {
             var snapshot = new Turbolinks.Snapshot(
@@ -210,7 +211,7 @@ window.submitForm = function (form, possibleClickedButton) {
             Turbolinks.clearCache();
             if (urlPathnameWithQuery !== formAction) {
                 history.pushState({ turbolinks: true }, '', request.responseURL);
-            } else if (urlPathnameWithQuery !== responseUrlPathName) {
+            } else if (urlPathnameWithQuery !== responseUrlPath) {
                 history.replaceState({}, "", request.responseURL)
             };
             var turbolinkLoadEvent = new CustomEvent('turbolinks:load');
@@ -223,7 +224,7 @@ window.submitForm = function (form, possibleClickedButton) {
                 window.onpopstate = function (event) {
                     window.location.reload();
                 };
-            } else if (urlPathnameWithQuery !== responseUrlPathName) {
+            } else if (urlPathnameWithQuery !== responseUrlPath) {
                 history.replaceState({}, "", request.responseURL)
             };