In what environments does this cause a crash?

[TZubiri]

From the following article:
https://arstechnica.com/tech-policy/2019/03/japanese-police-charge-13-year-old-girl-for-infinite-javascript-popup-prank/?comments=1&post=36976525

"You can see it above, though that's not quite the same as single-handedly crashing 1,507 computer systems on one day."

In Android chrome, ubuntu firefox, ubuntu chrome. I am never stuck in the application. Never experienced any explorer crash, let alone OS crash.

It seems like modern explorers take this common exploit into account and effectively protect users against it.

How did 1507 computer systems crash?

[Frontear]

It's most likely a false claim that is being propagated in order to make the girl seem more like a criminal than she really is. Even if the loop could be considered as burning the cpu clock cycles, alert is a blocking operation which waits for the message to be closed before firing again, so it's pretty much guaranteed that this is a lie.

[MysteryPancake]

The article is actually trying to imply the girl is innocent:

"...that's not quite the same as single-handedly crashing 1,507 computer systems on one day."

This is a reference to the movie "Hackers" (1995):

"11-year-old Dade "Zero Cool" Murphy is arrested and charged with crashing 1,507 computer systems in a single day." He was sentenced by court to not use a computer until his 18th birthday.

The quote is trying to say that the girl's crime is "not quite the same" as malicious hacking, using the fictional example of "crashing 1,507 computer systems" to explain how little damage she caused.

It uses an example from the "Hackers" film to joke about her being labelled a "hacker" for sharing a basic exploit. Indeed, her code does not cause any damage whatsoever. As the article states:

"Every mainstream desktop browser seems to handle the malicious page without incident. Edge, for example, offers a checkbox to prevent the page from being able to show subsequent dialogs, and Chrome lets you close the tab in spite of the alert box."

[LiEnby]

well on the major PS consoles (ps3/psvita/ps4) it requires you to completely quit out of the browser even though theres a "stop js on this page" button, it only takes effect once the function returns for some reason .