bug: ignore errors for malformed search queries

cmd/frontend/UpSearch.go

@@ -9,6 +9,7 @@ import (
 // Enpoint that returns a list of articles given search terms in the post
 // request of a search form. Uses the content template.
 func (app *App) UpSearch(w http.ResponseWriter, req *http.Request) {
+    // construct search query
     searchTerms := req.FormValue("search")
     if searchTerms == "" {
         app.Index(w, req)
@@ -17,7 +18,11 @@ func (app *App) UpSearch(w http.ResponseWriter, req *http.Request) {
     
     // get articles
     articles, err := app.articles.Search(searchTerms)
-    if err != nil { http.Error(w, err.Error(), http.StatusInternalServerError); return; }
+    if err != nil {
+        // treat as no result
+        //http.Error(w, err.Error(), http.StatusInternalServerError)
+        return
+    }
 
     // convert to viewmodel
     articleVMs := make([]*model.ArticleViewModel, 0, len(articles))