Top "Fallback" questions

What is the meaning of polyfills in HTML5?

What is the meaning of polyfills in HTML5? I saw this word in many sites about HTML5, e.g. HTML5…

javascript html fallback polyfills shim

How to load local script files as fallback in cases where CDN are blocked/unavailable?

I’m using a CDN for the following javascript: https://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js https://…

javascript cdn fallback

CSS calc not working in Safari and fallback

I have this layout I am working on. It strongly depends on CSS calc to do the necessary calculations. width: …

html css safari fallback

Catch any error in Python

Is it possible to catch any error in Python? I don't care what the specific exceptions will be, because all …

python exception exception-handling try-catch fallback

Return a default value if single row is not found

I have the following select statement to grab the next scheduled item for a stream. If there is no matching …

mysql select default fallback null-coalescing

How to use the I18n fallback features in Rails 3

I am getting an "translation missing" error message from Rails 3: activerecord: notices: messages: success: create: "Something was created" models: user: …

ruby-on-rails ruby-on-rails-3 internationalization rails-i18n fallback

Fallback (default) image using Angular JS ng-src

I'm trying to set an image source using data returned from a modal. This is inside an ng-repeat loop: <…

image angularjs src fallback

How to write css fallbacks for vh vw

Can anyone explain how fallbacks work in CSS? I am trying to set it up for vh and vw and …

css fallback viewport-units

WPF Binding FallbackValue set to Binding

Is there a way to have another binding as a fallback value? I'm trying to do something like this: <…

wpf data-binding fallback

Fallback image with CSS

I have an <img> that shows a remote image. I want it to fallback to another local image, …

image css background-image fallback