Improvements
Doubled the limit of PageAction events per harvest
Up to 120 PageAction events can be harvested every 30 seconds.
Removed call to /ping endpoint
Removed a legacy behavior used to ensure network connection was kept alive in IE 7/8/9.
Bug Fixes
Prevent duplicate session trace nodes
The final Session Trace node in a harvest, captured using the Resource Timing API, is no longer duplicated in the subsequent harvest.
This issue lead to 1 duplicate node in a Session Trace, every 10 seconds, over the duration of the trace.
Memory overhead when agent script
Fixed a memory leak in the agent when the network request to load the second part of the agent is blocked.
Update to file protocol restriction
Fixed an error thrown in the console when the agent is loaded using the file:// protocol caused by features in the agent trying to run when others had been aborted.
setTimeouts without callback functions
Fixed an issue where route change Browser Interactions would wait forever if a setTimeout was called without a callback function (passing code in as a string in the first argument) as the first argument.
Cypress.io
Fixed a conflict between the Browser agent and the Cypress.io test framework when instrumenting XMLHttpRequest.