Updates 

Core Player

• Extended the Javascript API to allow for asynchronous blocking between playlist items. Loading, preloading, ads, and playback of the next playlist item can be blocked until async operation, wrapped in a promise, resolves.
• Exposed metadataCueParsed events in Safari when ID3 tags are parsed.
• Reduced core player library size by 9.4%.
• Added support to load and parse HLS manifest metadata in Safari when an HLS stream contains #EXT-X-PROGRAM-DATE-TIME tags.
• Added a new boolean configuration option, loadAndParseHlsMetadata, which can be set to false to disable metadata parsing in Safari, which will lower manifest requests.
• Increased the number of seconds before a video completes where the next playlist item’s content begins to load from two to five in order to better accommodate asynchronous operations and reduce rebuffering.

Advertising

• Enabled Prebid.js to power client side auctions and migrated existing JW Video Player Bidding demand partners to use Prebid’s adapters.
• Created a new event, adWarning in the VAST plugin, which fires when a non-fatal ad error occurs that does not prevent fill.
• Created warning 70001 for VAST error code 1002, which occurs when a VMAP does not contain tracking events for the ad break.
• Added a new boolean configuration option, withCredentials to the advertising block, which when set to false will make just one ad call, one without credentials. By default, this option is set to true, which explicitly makes ad requests with credentials.
• Added support to prioritize ad schedules configured within an individual playlist item over any other ad schedule in Google IMA and Freewheel.

Fixes 

Core Player

• Fixed a Javascript exception being thrown in live HLS streams using program-date-time metadata.