I used to use a similar oneliner: data:text/html,<textarea style="height:99%;width:100%;" autofocus onfocus="this.value=localStorage['txt']" onchange="localS

I used to use a similar oneliner: data:text/html,<textarea style="height:99%;width:100%;" autofocus onfocus="this.value=localStorage['txt']" onchange="localStorage['txt']=this.value;">