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Captive portal that modifies content retrieved from designated web page to specify base domain for relative link and sends to client in response to request from client for unauthorized web page
Captive portal that modifies content retrieved from designated web page to specify base domain for relative link and sends to client in response to request from client for unauthorized web page
The described captive portal techniques cause client devices to render and display designated web pages. One designated web page may be different than a requested web page such as when a client is not authorized to access the requested page and is instead caused to display a login portal. The captive portal may modify the designated web page to ensure that relative links lacking base domains now have specified base domains pointing to an authorized web server. The modified content is sent from the captive portal to the client device for display. Client web browser security measures related to redirection messages are thereby bypassed and load on the captive portal is minimal. Another designated web page may be the same as the requested web page such as when the requested page is an authorized page even for non-logged in clients. Authorized pages may be modified to add a login link.
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