Embedded script forbidding printing












1















Note: I am not trying to circumvent the lock. I just want to know how it works, because it baffles me.



On this page(https://addyosmani.com/resources/essentialjsdesignpatterns/book/#introduction) whenever you try to print a pdf out of it, you get a header which contains "back to code" and sort of works like a modal. If you do an inspect on it, it turns out to be an embedded script which seems to run from Chrome itself. How is that possible?










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    1















    Note: I am not trying to circumvent the lock. I just want to know how it works, because it baffles me.



    On this page(https://addyosmani.com/resources/essentialjsdesignpatterns/book/#introduction) whenever you try to print a pdf out of it, you get a header which contains "back to code" and sort of works like a modal. If you do an inspect on it, it turns out to be an embedded script which seems to run from Chrome itself. How is that possible?










    share|improve this question

























      1












      1








      1








      Note: I am not trying to circumvent the lock. I just want to know how it works, because it baffles me.



      On this page(https://addyosmani.com/resources/essentialjsdesignpatterns/book/#introduction) whenever you try to print a pdf out of it, you get a header which contains "back to code" and sort of works like a modal. If you do an inspect on it, it turns out to be an embedded script which seems to run from Chrome itself. How is that possible?










      share|improve this question














      Note: I am not trying to circumvent the lock. I just want to know how it works, because it baffles me.



      On this page(https://addyosmani.com/resources/essentialjsdesignpatterns/book/#introduction) whenever you try to print a pdf out of it, you get a header which contains "back to code" and sort of works like a modal. If you do an inspect on it, it turns out to be an embedded script which seems to run from Chrome itself. How is that possible?







      javascript






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Jan 2 at 2:02







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