How to implement 301 jump through js code

301 Jump method: "".

Method to implement 301 jump through js code:

Use this JS code in the corresponding web page file 301 jump can be achieved, such as jumping a domain name without www to a domain name with www. The code is as follows:

<script language=javascript> 
if (document.domain ==""yisu.com"") 
this.location = ""http://www.yisu.com"" + this.location.pathname + this.location.search; 
</script>

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