Recently I encountered an issue where a network request's time can change in devtool after it finishes.
At the very beginning we have the first request recorded as usual:
As the page goes on load, this request cost 1.1s in devtool's network panel and say on this time value for a while:
After this request is finished, its time changes to 286ms suddenly without any solid reason:
I can't figure out why this time changes and why it would cause so much time.
Can notic transfer-encoding: chunked in response header but not sure this is a key factor to this behavior.