kcookiejar is using locale-aware Qt functions to parse the dates in cookies, which fails when running in a non-English locale. It should instead use the C locale, so that the English month names are recognized.
Git commit 75b2e3deebd42a3753fe2971a5f4a2a26edcab69 by Albert Astals Cid, on behalf of Andreas Schwab. Committed on 05/01/2018 at 22:02. Pushed by aacid into branch 'master'. Properly parse dates in cookies when running in non-English locale Summary: Use the C locale when parsing dates in cookies, since only English week and month names are allowed Reviewers: dfaure, #frameworks Reviewed By: dfaure Subscribers: anthonyfieroni, #frameworks Tags: #frameworks Differential Revision: https://phabricator.kde.org/D8983 M +8 -3 src/ioslaves/http/kcookiejar/kcookiejar.cpp https://commits.kde.org/kio/75b2e3deebd42a3753fe2971a5f4a2a26edcab69