Open Bug 1456230 Opened 6 years ago Updated 2 years ago

Pages can block navigation by reloading on 'beforeunload'

Categories

(Core :: DOM: Navigation, defect, P3)

61 Branch
defect

Tracking

()

UNCONFIRMED

People

(Reporter: leonesfield, Unassigned)

Details

(Keywords: csectype-dos, sec-low)

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(1 file)

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0
Build ID: 20180421220102

Steps to reproduce:

1. Go to a website that reloads upon beforeunload is triggered
2. Attempt to navigate away


Actual results:

The browser canceled the navigation, to reload the current page, rendering the current tab useless.


Expected results:

The browser should block any navigation requests from the site, allowing the user to navigate away
Group: firefox-core-security
Component: Untriaged → Document Navigation
Product: Firefox → Core
Priority: -- → P3

Seems to be patched now.

Severity: normal → S3
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