How to Disable browser's back button Using Javascript
> First of all, we strongly recommand not to disable Browser's back button.
> If you need, please inform the user before doing this.
> Below is the javascript code for disabling browser's back button.

> By providing the above code, the user won't be able to come back to first page.
> Hence its better to provide a message to the user before leaving the first page.
> Message can be provided on the
beforeUnload javascript function as shown below.

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