I'm capturing the load of the preview.starbucks.com PWA. 
(You have to be logged in)

I've been seeing a big gap on the timeline, but now it appears that we are collecting real JS samples, but do not construct the flamechart because we're not in a JS event.

On some loads I do end up in "Run Microtasks" but most of the time that isn't present.

See attached trace.


 

Deleted: preview.starbucks.com_2017-09-29_12-12-17-0.trace.json.zip 3.0 MB

preview.starbucks.com_2017-09-29_12-12-17-0.trace.json.zip 3.0 MB Download

Deleted: Screen Shot 2017-09-29 at 12.30.05 PM.png 366 KB

	Screen Shot 2017-09-29 at 12.30.05 PM.png 366 KB View Download