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How can I prevent access to a web page by using javascript?

April 26, 2017Javascript web page

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How can I prevent access to a web page by using javascript?

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In practice you can’t. While you could create a suitable encryption system with a password in the page, the level of support you need to do this means it’s always simpler to do it server-side. Anything that “protects” a page other than the current one is definitely flawed.