We have a hard-coded upper limit for Form Hardening of 8000 characters for the whole HTML page. There may be scenarios when characters are not shown or misplaced in the website.
This symptom can be easily identified in this log line: /log/reverseproxy.log with this log entry: form_hardening_form_end: Failed to serialize widget value
Run the following command using Advance Shell option i.e. Option 5 then choose option 3 when you access the appliance via SSH/console connection.
grep -i "Failed to serialize widget value" /log/reverseproxy.log
If the log line is observed then you are affected with this limit and you may follow the steps below to resolve this issue.
Applies to the following Sophos products and versions Sophos Firewall
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