web interface ui timeout = 0 setting?

The timeout=0 parameter needs to be added to a ui3.htm URL. For example:


If you bookmark/link it that way, the parameter will be properly preserved during the login sequence, so it will take effect when the web interface loads.
 
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Why not just set it here?
That is of course what most people do. In some special cases it is inconvenient though, like if the browser is running in a sandbox that loses its settings between page loads.
If you clear cookies I believe you will lose the setting.
Yes. Clearing cookies typically clears "local storage" too, which is where UI3 keeps all of its settings. Some people configure their browsers to clear all this stuff every time they close it.

Same situation when the browser has cookies disabled since this disables local storage too. In such a case the only way to automatically have the idle timeout set to 0 is to use the URL parameter or use a ui3-local-overrides.js file that overrides UI3's default settings.
 
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That's probably true but easy enough to set, how often do you clear your cookies?
I clear cookies whenever I get mad at too many targeted ads, suggestions based on browsing history, and so forth. By that time there are cookies from at least 500 sites. Time-wise, maybe once a month on average.
 
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