FIX: Escaped mailto URLs would raise an exception

This prevents exceptions from being raised if a URL has an invalid
component.

lib/url_helper.rb

@@ -70,7 +70,7 @@ class UrlHelper
   def self.rails_route_from_url(url)
     path = URI.parse(encode(url)).path
     Rails.application.routes.recognize_path(path)
-  rescue Addressable::URI::InvalidURIError
+  rescue Addressable::URI::InvalidURIError, URI::InvalidComponentError
     nil
   end
 

spec/components/url_helper_spec.rb

@@ -205,5 +205,10 @@ describe UrlHelper do
       url = "http://URL:%20https://google.com"
       expect(described_class.rails_route_from_url(url)).to eq(nil)
     end
+
+    it "does not raise for invalid mailtos" do
+      url = "mailto:eviltrout%2540example.com"
+      expect(described_class.rails_route_from_url(url)).to eq(nil)
+    end
   end
 end