如何使html值不受更改的影响

Question

How can I make HTML values safe from change by browsers

some examples

textarea

<textarea maxlength="50"></textarea> 

any one can change maxlength value

and <a href="#" rel="15" >Like</a> any one can change rel value and rel value id of post

i use event.preventDefault(); on jquery

but sometimes i need change value by jquery any help

thanks

Answer 1

A better solution would be to perform your sanitation and validation server-side (such as ASP), which cannot be modified by the browser. Any HTML can be modified in the browser.