TLS Error while accessing a URL which is blocked by URL Filtering policy

Im getting ERR_SSL_PROTOCOL_ERROR while trying to access a https page which is blocked by a URL filtering policy. By right it should display the block notification page. Tried on multiple browsers.

Im not doing SSL inspection in my environment and the the URL category is not blocked under the SSL inspection global policy. It is blocked under a policy rule in URL filtering policy.

The block notification page works fine when i access http.

I have a Z APP forwarding profile with tunnel mode. And also i have the root cert of zscaler installed in my machine.

Really appreciate if anyone can let me know if i miss something to configure here. Thanks!

I think you need to SSL inspect your block categories.

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Gordon is correct here,

To modify the page contents (so the block message can be shown), inspection is required.

Regards

David

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