Version: 52.0.2708.0
OS: Android

When connected to a captive portal network (requires authentication to view the internet, used at coffee shops and airports for example) that has no internet connection, Chrome lags for about 30 seconds before deciding it's offline and shows the offline content.

Compared to a normal network with no internet connection, where Chrome load the offline content almost immediately.

What steps will reproduce the problem?
(1) Start Chrome with offline pages enabled, and an offline page saved.
(2) Connect to a captive portal with no internet connection.
(3) Navigate to the url of the page with offline copy

What is the expected output?

The offline copy should load almost immediately when Chrome detects it's offline.

What do you see instead?

There's a 30 second interval while Chrome tries to load the page before it detects it's offline and loads the offline copy.  This happens on every page load, so refreshing the page or opening a new tab will start a new 30 second interval.


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