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Random empty results from get_flights() during polling #109
Description
When I repeatedly call get_flights() (e.g. every 40 seconds), the function behaves inconsistently:
Sometimes it returns a full list of flights (100+ entries)
Other times it returns an empty list ([]) without any error
After a few seconds, it works again
This happens randomly and is not tied to any specific airline or parameter.
What I already checked
-Same request parameters are used every time
-No exceptions are thrown when the result is empty
-Increasing delay does not fully prevent the issue
-The issue appears even when everything is stable on my side
-Additional observation
The library often prints this warning:
failed to decode Content-Encoding='gzip'
(Not a gzipped file ...)
However, this warning also appears when data is successfully returned, so it does not seem to fully break the request.
Activity
JeanExtreme002 commentedon Aug 19, 2026
This should be fixed now, both parts of it.
The empty lists came from FR24's load balancer: one of the feed backends was answering 200 with a valid envelope but no flights, and the AWSALB cookie pinned your session to it. #111 makes get_flights() drop that cookie and retry when it sees zero flights with full_count > 0, so you land on a healthy backend. Shipped in 1.5.2.
The gzip warning was harmless — curl_cffi had already decompressed the body — and it's down to DEBUG since 1.5.3.
Give 1.5.3 a try and reopen if you still see it.
Bkk20 commentedon Aug 19, 2026
Works! Nice! Thank you!