My website session variable is being cleared - intermittently
My application www.myfloorschedule.com has always worked well with Firefox. Beginning last month users report that they are being taken back to the home page while trying to work in the application. This occurs intermittently. Internally, our code does returns you to the home page when the session variable is null. I am able to replicate this problem. It occurs all the time when I turn on strict privacy. But with strict privacy off, it still occurs, although not on every page, all the time.
I suspect Firefox because testing with Chrome and Edge give no similar problem.
Thanks for any ideas on this. Terence
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Make sure you are not blocking content.
https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-desktop also see https://blog.mozilla.org/security/2021/03/23/introducing-smartblock/
https://support.mozilla.org/en-US/kb/smartblock-enhanced-tracking-protection
Diagnose Firefox issues using Troubleshoot(Safe) Mode {web link}
A small dialog should appear. Click Start In Troubleshoot(Safe) Mode (not Refresh). Is the problem still there?
Many site issues can be caused by corrupt cookies or cache.
Warning ! ! This will log you out of sites you're logged in to. You may also lose any settings for that website.
- How to clear the Firefox cache {web link}
There is a change in Firefox 96 related to cookies and insecure sites.
- https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/96#http
- https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie/SameSite
As a workaround you can modify this pref on the the about:config page to revert this change.
- about:config => network.cookie.sameSite.laxByDefault = false
See also:
- about:config => network.cookie.sameSite.laxByDefault.disabledHosts
You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.