Give option to not prerender when rendering from controllers

Author: xinranxiao

lib/react/rails/controller_renderer.rb

@@ -3,7 +3,8 @@ module Rails
     # A renderer class suitable for `ActionController::Renderers`.
     # It is associated to `:component` in the Railtie.
     #
-    # It is prerendered with {React::ServerRendering}.
+    # It is prerendered by default with {React::ServerRendering}.
+    # Set options[:prerender] to `false` to disable prerendering.
     #
     # @example Rendering a component from a controller
     #   class TodosController < ApplicationController
@@ -24,12 +25,18 @@ def initialize(options={})
         @__react_component_helper = controller.__react_component_helper
       end
 
-      # @return [String] Prerendered HTML for `component_name` with `options[:props]`
+      # @return [String] HTML for `component_name` with `options[:props]`
       def call(component_name, options, &block)
         props = options.fetch(:props, {})
-        options = options.slice(:data, :aria, :tag, :class, :id).merge(prerender: true)
+        options = default_options.merge(options.slice(:data, :aria, :tag, :class, :id, :prerender))
         react_component(component_name, props, options, &block)
       end
+
+      private
+
+      def default_options
+        { prerender: true }
+      end
     end
   end
 end