SRI stands for Subresource Integrity
SRI puts extra parameters on the ReachDeck code, a hashcode that represents the contents of the file. If the ReachDeck script ever changes, and it does not match this hashcode, the browser will refuse to load it - ensuring full security for the Website owner and end user.
The SRI code is version specific , so when you are implementing the ReachDeck script on your site you need to choose a specific version of ReachDeck (we recommend the most up to date version).
Please note: If ReachDeck is updated, you will need to change your code to the latest version. We will let you know when this is happening prior to the update and is very easy to do.