Route parameters have more precedence than query string arguments

spec/frank_handler_spec.cr

@@ -21,6 +21,16 @@ describe "Frank::Handler" do
     response.body.should eq("hello world")
   end
 
+  it "route parameter has more precedence than query string arguments" do
+    frank = Frank::Handler.new
+    frank.add_route "GET", "/:message" do |ctx|
+      "hello #{ctx.params["message"]}"
+    end
+    request = HTTP::Request.new("GET", "/world?message=coco")
+    response = frank.call(request)
+    response.body.should eq("hello world")
+  end
+
   it "sets content type" do
     frank = Frank::Handler.new
     frank.add_route "GET", "/" do |env|

src/frank/handler.cr

@@ -25,7 +25,7 @@ class Frank::Handler < HTTP::Handler
       if params
         if query = uri.query
           CGI.parse(query) do |key, value|
-            params[key] = value
+            params[key] ||= value
           end
         end