Laravel - empty request value when input contain javascript

I'm trying to add a feature to my Laravel application that allow users to save Google / facebook / hotgar Pixels code (javascript code).

The user have a form with input TAG that he can past is pixel.

Now when i submit the form and trying to handle to corm data in my controller... that input that contain the javascript data... are empty

when

<input type="text" class="conversion-code" name="poptinConversionCode[]" value="<script type='text/javascript'></script>"></input>

<input type="text" class="conversion-code" name="poptinConversionCode[]" value='test test'></input>

in the controller

[poptinConversionCode] => Array
(
    [0] => 
    [1] => test test
)

Why?

And how i can do send javascript to my controller?

via Dani Banai