download the blockchain.js file and place it on the server
download link https://github.com/DamianPacanowski/blockchain.js/blob/ab6fa2980817ebc6de4b15c1765d4ec4a289c710/blockchain.js
add the code below where you want it to work
remember to overwrite the correct path to the blockchain.js file, it is set to the main folder by default
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>blockchain.js sample form</title>
<input id="net" type="text" name="net" placeholder="1234567890ABCDEFGHIJKLMNOPRSTUWXYVQZabcdefghijklmnoprstuwxyvqz@.=_-+*/!#%|" style="display:block;width:50%;margin:3px;">
<input id="text" type="text" name="text" placeholder="31 long string" style="display:block;width:50%;margin:3px;">
<select id="typex" name="typex"><option value="">select type</opiton><option value="0">all in get</option><option value="1">chain in cookie rest in get</option></select>
<button onclick="blockchain();" style="cursor:pointer;">BLOCKCHAIN JS</button>
<script src="blockchain.js"></script>