Add Ignore Poltergeist JavaScript Errors as a rails til.

README.md

@@ -87,6 +87,7 @@ smart people at [Hashrocket](http://hashrocket.com/).
 - [Capybara Page Status Code](rails/capybara-page-status-code.md)
 - [Conditional Class Selectors in Haml](rails/conditional-class-selectors-in-haml.md)
 - [Creating Records of Has_One Associations](rails/creating-records-of-has-one-associations.md)
+- [Ignore Poltergeist JavaScript Errors](rails/ignore-poltergeist-javascript-errors.md)
 - [Pretend Generations](rails/pretend-generations.md)
 - [Retrieve An Object If It Exists](rails/retrieve-an-object-if-it-exists.md)
 - [Select Value For SQL Counts](rails/select-value-for-sql-counts.md)

rails/ignore-poltergeist-javascript-errors.md

@@ -0,0 +1,21 @@
+# Ignore Poltergeist JavaScript Errors
+
+Poltergeist with PhantomJS (<2.0) does not support JavaScript's `bind()`
+method. This means that when executing an integration test that exercises
+JavaScript with the `bind()` method, an error will occur. If you cannot
+simply upgrade to a version of PhantomJS that supports `bind()`, then what
+can you do?
+
+Ignore the error!
+
+This can be achieved by placing the following rescue block in the
+appropriate place.
+
+```ruby
+rescue Capybara::Poltergeist::JavascriptError
+```
+
+Use this in moderation. You want to make sure you don't ignore actual
+JavaScript errors.
+
+[source](http://stackoverflow.com/questions/22020680/temporarily-set-js-errors-to-false-in-poltergeist)