Fix ob: type not registered for interface: map[string]string & superfluous response.WriteHeader, as well as wired up to go to custom 500 messages.

internal/handlers/account/signup.go

@@ -72,8 +72,8 @@ func SignupPost(c *gin.Context) {
 		AcceptTerms:     r.FormValue("accept_terms") == "on",
 	}
 
-	errors := validateRegisterForm(db, form)
-	if len(errors) > 0 {
+	errMap := validateRegisterForm(db, form)
+	if len(errMap) > 0 {
 		formMap := map[string]string{
 			"username": form.Username,
 			"email":    form.Email,
@@ -85,7 +85,7 @@ func SignupPost(c *gin.Context) {
 			}(),
 		}
 		sm.Put(r.Context(), "register.form", formMap)
-		sm.Put(r.Context(), "register.errors", errors)
+		sm.Put(r.Context(), "register.errors", errMap)
 		sm.Put(r.Context(), "flash", "Please fix the highlighted errors.")
 
 		c.Redirect(http.StatusSeeOther, "/account/signup")
@@ -153,6 +153,5 @@ func validateRegisterForm(db *sql.DB, f registerForm) map[string]string {
 }
 
 func looksLikeEmail(s string) bool {
-
 	return strings.Count(s, "@") == 1 && strings.Contains(s, ".")
 }