is digest authentication supposed to work?

[cmm]

I'm trying to get several Livejournal feeds to work properly (don't ask). So let's say there's a URL of the form https://<user>:<password>@<feed-name>.livejournal.com/data/rss/?auth=digest. It works (as in: fetches all recent entries, including protected ones, without an issue) when fed to wget.

Selfoss logs this for the same feed URL:

[2024-06-30 09:11:10] selfoss.ERROR: error loading feed content for <redacted> {"exception":"[object] (Exception(code: 0): Client error: `GET https://<user>:***@<feed-name>.livejournal.com/data/rss/?auth=digest` resulted in a `401 Unauthorized` response:
Digest authentication <b>FAILED</b>!
 at /var/lib/selfoss/src/helpers/FeedReader.php:58)
[stacktrace]
#0 /var/lib/selfoss/src/spouts/rss/feed.php(65): helpers\\FeedReader->load()
#1 /var/lib/selfoss/src/helpers/ContentLoader.php(132): spouts\^Mss\\feed->load()
#2 /var/lib/selfoss/src/helpers/ContentLoader.php(71): helpers\\ContentLoader->fetch()
#3 /var/lib/selfoss/src/controllers/Sources/Update.php(37): helpers\\ContentLoader->update()
#4 /var/lib/selfoss/index.php(40): controllers\\Sources\\Update->updateAll()
#5 [internal function]: {closure}()
#6 /var/lib/selfoss/vendor/bramus/router/src/Bramus/Router/Router.php(458): call_user_func_array()
#7 /var/lib/selfoss/vendor/bramus/router/src/Bramus/Router/Router.php(440): Bramus\\Router\\Router->invoke()
#8 /var/lib/selfoss/vendor/bramus/router/src/Bramus/Router/Router.php(287): Bramus\\Router\\Router->handle()
#9 /var/lib/selfoss/index.php(170): Bramus\\Router\\Router->run()
#10 {main}
"}