Replace string when appears on screen

HTML

<img tosrc="http://lorempixel.com/400/200/">
<br><br><br><br><br><br><br><br>
<img tosrc="http://lorempixel.com/400/201/">
<br><br><br><br><br><br><br><br>
<img tosrc="http://lorempixel.com/400/199/">
<br><br><br><br><br><br><br><br>
<img tosrc="http://lorempixel.com/399/200/">
<br><br><br><br><br><br><br><br>
<img tosrc="http://lorempixel.com/399/201/">
<br><br><br><br><br><br><br><br>
<img tosrc="http://lorempixel.com/399/199/">

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Replace string when appears on screen

HTML

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Join the 4+ million users, and keep the JSFiddle dream alive.

Ad-free

Use pre-released features

Fiddle collections

Private collections and fiddles

Console