Under the hood
Useful2 Signal3
Telemetry requests get random padding so their compressed size hides the real payload length.
What's wrong with this entry?
Anonymous. No account, no email.
What
Compressed telemetry requests now get a newline and a random run of 0 to 256 spaces or tabs appended first, so the compressed size no longer reveals the exact payload length. Only on the gzip path.
Evidence
Math.random() < 0.5 ? " " : "\t"
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
Related
Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.