CODEWITHSUNDEEP
javascriptapibrowserbrowser-api
stallion
stallion

Reputation: 1987

Why cant we show custom messages in onBeforeUnload dialogs

I see that most modern browsers have removed the ability to pass custom message in onbeforeunload dialogs. (feature removed in chrome: https://www.chromestatus.com/feature/5349061406228480).

So i have the following questions..

Why have the modern browsers removed that functionality ? What is their reasoning behind this design? If user has to show custom messages in modern browsers , what do we do now?

Upvotes: -1

Views: 589

Answers (1)

user17112781
user17112781

Reputation:

The reason behind that , is security concerns . As onbeforeunload event may allow attackers to upload some codes which can merge harsh code to client / server sides as well as to the uploaded file.

Upvotes: 0

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