Printing a HTML template as PDF - Angular 2

I am trying to use jsPDF to print my HTML template as a PDF, but I get an error. How should I do it?

Let's say that I have this template:

<div style="text-align:center;" class="sub-header col-lg-12 col-md-12 col-sm-12">
<span class="welcome-message col-lg-12 col-md-12 col-sm-12">Hola mundo</span>
</div>

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