diff --git a/project.clj b/project.clj
index cdecb66cd..72037aae4 100644
--- a/project.clj
+++ b/project.clj
@@ -117,7 +117,7 @@
   :profiles {:dev {:dependencies [[binaryage/devtools "0.9.10"]
                                   [day8.re-frame/re-frame-10x "0.4.4"]
                                   [figwheel-sidecar "0.5.19"]
-                                  [cider/piggieback "0.4.1"]]
+                                  [cider/piggieback "0.4.2"]]
                    :resource-paths ["config/dev" "tools" "config/defaults"]
                    :plugins [[lein-figwheel "0.5.19"]
                              [lein-doo "0.1.8"]]}
diff --git a/src/clj/bluegenes/index.clj b/src/clj/bluegenes/index.clj
index d4c92b47e..7b8758d74 100644
--- a/src/clj/bluegenes/index.clj
+++ b/src/clj/bluegenes/index.clj
@@ -35,7 +35,7 @@
   [:style
    "#csscompiling{position:fixed;bottom:0;right:0;padding:20px;height:100px;width:400px;background-color:#FFA726;}"])
 
-(defn head []
+(defn head [& [req]]
   [:head
    loader-style
    css-compiling-style
@@ -56,7 +56,8 @@
                            :serviceRoot     (:bluegenes-default-service-root env)
                            :mineName        (:bluegenes-default-mine-name env)
                            :version         (or (second (re-find #"app-(.*)\.js" bundle-path))
-                                                "dev")})
+                                                "dev")
+                           :postData        (:params req)})
          ";")]
   ; Javascript:
    [:link {:rel "shortcut icon" :href "https://raw.githubusercontent.com/intermine/design-materials/f5f00be4/logos/intermine/fav32x32.png" :type "image/png"}]
@@ -90,9 +91,9 @@
 
 (defn index
   "Hiccup markup that generates the landing page and loads the necessary assets."
-  []
+  [& [req]]
   (html5
-   (head)
+   (head req)
    [:body
     (css-compiler)
     (loader)
diff --git a/src/clj/bluegenes/routes.clj b/src/clj/bluegenes/routes.clj
index 63c7c03f7..38d8ca43b 100644
--- a/src/clj/bluegenes/routes.clj
+++ b/src/clj/bluegenes/routes.clj
@@ -1,10 +1,11 @@
 (ns bluegenes.routes
-  (:require [compojure.core :refer [GET defroutes context]]
+  (:require [compojure.core :refer [GET POST defroutes context]]
             [compojure.route :refer [resources]]
             [ring.util.response :refer [response]]
             [bluegenes.ws.auth :as auth]
             [bluegenes.ws.ids :as ids]
-            [bluegenes.index :as index]))
+            [bluegenes.index :as index]
+            [ring.middleware.params :refer [wrap-params]]))
 
 ; Define the top level URL routes for the server
 (defroutes routes
@@ -18,4 +19,5 @@
     (context "/auth" [] auth/routes)
     (context "/ids" [] ids/routes))
 
-  (GET "*" [] (index/index)))
+  (GET "*" [] (index/index))
+  (wrap-params (POST "*" req (index/index req))))
diff --git a/src/cljs/bluegenes/events/boot.cljs b/src/cljs/bluegenes/events/boot.cljs
index fc911c90e..05d213398 100644
--- a/src/cljs/bluegenes/events/boot.cljs
+++ b/src/cljs/bluegenes/events/boot.cljs
@@ -1,5 +1,6 @@
 (ns bluegenes.events.boot
   (:require [re-frame.core :refer [reg-event-db reg-event-fx subscribe inject-cofx]]
+            [clojure.string :as string]
             [bluegenes.db :as db]
             [imcljs.fetch :as fetch]
             [imcljs.auth :as auth]
@@ -65,7 +66,11 @@
                       ;; no organisms when I initialise the component. I have a workaround
                       ;; so it doesn't matter in this case, but it is something to be aware of.
                       [:cache/fetch-organisms]
-                      [:regions/select-all-feature-types]]
+                      [:regions/select-all-feature-types]
+                      ;; Handle any POST data passed from the backend. This is
+                      ;; usually done to pass data and open a specific page/result
+                      ;; from an external page.
+                      [:handle-link-in]]
                (not wait-registry?) (conj [::registry/load-other-mines]))
              :halt? true}])})
 
@@ -409,3 +414,19 @@
  :assets/success-fetch-web-service-version
  (fn [db [_ mine-kw version]]
    (assoc-in db [:assets :web-service-version mine-kw] version)))
+
+(reg-event-fx
+ :handle-link-in
+ (fn [{db :db} [_]]
+   (let [{:keys [regions features]} (:postData (->clj js/serverVars))]
+     (cond
+       regions {:dispatch-n (concat [[::route/navigate ::route/regions]
+                                     [:regions/set-to-search regions]
+                                     (when (not-empty features)
+                                       [:regions/deselect-all-feature-types])]
+                                    (map (fn [f]
+                                           [:regions/toggle-feature-type {:name f}])
+                                         (some-> (not-empty features)
+                                                 (string/split #",")))
+                                    [[:regions/run-query]])}
+       :else {}))))
diff --git a/src/cljs/bluegenes/pages/regions/events.cljs b/src/cljs/bluegenes/pages/regions/events.cljs
index c70d52e77..5383b7e7a 100644
--- a/src/cljs/bluegenes/pages/regions/events.cljs
+++ b/src/cljs/bluegenes/pages/regions/events.cljs
@@ -40,6 +40,8 @@
 (reg-event-db
  :regions/toggle-feature-type
  (fn [db [_ class]]
+   ;; If you're going to grab more properties out of `class`, make sure to
+   ;; check all uses of this event handler! (Some might not pass all.)
    (let [class-kw (keyword (:name class))
          m (get-in db [:mines (get db :current-mine) :service :model])
          descendants (keys (entity/extended-by m class-kw))
diff --git a/src/cljs/bluegenes/pages/regions/views.cljs b/src/cljs/bluegenes/pages/regions/views.cljs
index aa31b7e57..3337bcfeb 100644
--- a/src/cljs/bluegenes/pages/regions/views.cljs
+++ b/src/cljs/bluegenes/pages/regions/views.cljs
@@ -159,15 +159,12 @@
      [checkboxes to-search settings]]))
 
 (defn main []
-  (reagent/create-class
-   {:component-did-mount #(dispatch [:regions/select-all-feature-types])
-    :reagent-render
-    (fn []
-      [:div.container.regionsearch
-       [:div.headerwithguidance
-        [:h1 "Region Search"]
-        [:a.guidance
-         {:on-click #(dispatch [:regions/set-to-search (ex)])}
-         "[Show me an example]"]]
-       [input-section]
-       [results-section]])}))
+  (fn []
+    [:div.container.regionsearch
+     [:div.headerwithguidance
+      [:h1 "Region Search"]
+      [:a.guidance
+       {:on-click #(dispatch [:regions/set-to-search (ex)])}
+       "[Show me an example]"]]
+     [input-section]
+     [results-section]]))