Memory leak of webui

[katyurua]

qBittorrent & operating system versions

OS: Windows 10 x64 22H2

Qt: | 6.9.3 -- | -- Libtorrent: | 1.2.20.0 Boost: | 1.86.0 OpenSSL: | 3.6.0 zlib: | 1.3.1

What is the problem?

When open webui and leave it in browser, memory keeps increasing until all memory is exhausted , then crash.

Steps to reproduce

Run 2 qBittorrent instances on Windows 10, portable mode, different port.
open both webui from another computer, and leave it in browser, do not close it.(chrome/edge)
The memory usage continuously increases every few seconds, from hundreds MB to 50GB+.

Eventually it exceeds available memory, causing system instability and crash.

Additional context

I thought it was a cache issue, then I did a lot of test
turns out it is webui issue

it maybe a problem with cookie or SID, i

Now I use nginx or caddy reverse proxy to avoid this,
access webui with different domain(qb1.lan qb2.lan)
24 hours testing, no memory leak，1G max memory usage,
but this problem is still there.

Log(s) & preferences file(s)

qBittorrent.ini

[Bambus3000]

I had the same a while back, though I run my qbittorrent on Truenas Scale if that makes any difference.
The solution was quite simple really, a complete reload of the tab by hitting CTRL+F5, or by clearing cookies and site data, I can't remember which one I used. No issues since.

[kapsh]

Reproduces for me on 5.1.4.
I left qbittorrent in background tab for a full day with "Active torrents" filter (about 10 items seeding). Memory used raised from 150-180 MB for fresh page to 2 GB as shown in Firefox's Process Manager. The same amount of total system memory was freed when page was closed, which confirms the number indirectly. Unfortunatelly, devtools profiler reports only 14 MB for javascript objects, so nothing useful to collect from it.