Adds checking of template error

go/src/infra/tricium/service/workflow-listener/handlers.go

Index: go/src/infra/tricium/service/workflow-listener/handlers.go
diff --git a/go/src/infra/tricium/service/workflow-listener/handlers.go b/go/src/infra/tricium/service/workflow-listener/handlers.go
index cd676c917b838c147b11477125be0c36a52ddb65..c35ee884b1f1e931b9bf438af6c73ff1f8eae3d8 100644
--- a/go/src/infra/tricium/service/workflow-listener/handlers.go
+++ b/go/src/infra/tricium/service/workflow-listener/handlers.go
@@ -6,11 +6,12 @@
 package handlers
 
 import (
-	"html/template"
 	"net/http"
 
 	"google.golang.org/appengine"
 	"google.golang.org/appengine/taskqueue"
+
+	"infra/tricium/service/common"
 )
 
 func init() {
@@ -18,14 +19,12 @@ func init() {
 	http.HandleFunc("/workflow-listener/queue-handler", queueHandler)
 }
 
-var basePage = template.Must(template.ParseFiles("templates/base.html"))
-
 func statusPageHandler(w http.ResponseWriter, r *http.Request) {
 	// TODO(emso): Add workflow listener stats
-	data := map[string]interface{}{
+	d := map[string]interface{}{
 		"Msg": "Status of the Workflow Listener ...",
 	}
-	basePage.Execute(w, data)
+	common.ShowBasePage(w, d)
 }
 
 func queueHandler(w http.ResponseWriter, r *http.Request) {
@@ -35,8 +34,8 @@ func queueHandler(w http.ResponseWriter, r *http.Request) {
 
 	// Enqueue gerrit reporter task.
 	t := taskqueue.NewPOSTTask("/gerrit-reporter/queue-handler", map[string][]string{"name": {"Workflow Event"}})
-	if _, err := taskqueue.Add(ctx, t, "gerrit-reporter-queue"); err != nil {
-		http.Error(w, err.Error(), http.StatusInternalServerError)
+	if _, e := taskqueue.Add(ctx, t, "gerrit-reporter-queue"); e != nil {
+		http.Error(w, e.Error(), http.StatusInternalServerError)
 		return
 	}
 }