Summary
By default, Laserfiche Web Client 10.4.2 Update 1 is configured to require secure cookies. By extension, this requires configuring the web client for SSL/TLS. If you must continue to use HTTP communication, you can manually modify the web client web.config file to turn off secure cookies.
To turn off secure cookies
<httpCookies requireSSL="true"/>
Be aware that if you turn off secure cookies and you are using Google Chrome version 80 or later, you may not be able to sign out of the web client or authenticate when the web client is embedded in an iframe.
Related Links
1014117 List of Changes for Laserfiche Client 10.4.2 Update 1.
1014094 When using Google Chrome 80 or later, You May Be Unable To Sign Out Of Laserfiche Web Client 10.4.2 and Unable to Authenticate if the Web Client is Embedded in an Iframe.