v3.0.20 - June 4, 2014

• Canvas config retrieval process was improved by adding retry logic. Now if a request fails, we make 2 more retries to fetch Canvas config again.
• We’ve updated jQuery (to v1.11.1) and QUnit (to v1.14.0) 3rd party libraries we use in JS SDK to their respective latest versions.
• Conflict with multiple Bootstrap libraries included on a page was resolved.
• Echo.Utils.debounce function was introduced to provide a unified way to suppress massive execution of the same function (for example when we subscribe to “onscroll” DOM event).
• Function which detects if a Canvas target is in a viewport (if a Canvas is initialized when entering a viewport) was improved to reduce viewport visibility calculation operations.
• JanrainAuth plugin was updated to preserve HTTPS protocol during the login operation. Previously in some cases the protocol was switched from HTTPS to HTTP causing security warnings in a browser.
• InfiniteScroll plugin logic was updated to respect asynchronous method of Items rendering in a Stream.
• Previously WebSockets "onClose" event was executed before a connection was closed and all internal fields were cleared. We’ve updated events execution order to make sure that the sequence is correct.
• WebSockets machinery was updated to handle connection closing logic, when a connection is dropped outside of the SDK logic (for example in case a connection is dropped by the server side or by a browser).
• Submit "destroy" method was fixed to avoid Post button corruption.