how to remove localhost:URL from alert box [duplicate] - javascript

This question already has answers here:
How to edit a JavaScript alert box title?
(10 answers)
Closed 4 years ago.
javascript alert box showing url + msg. i have not passed any thing but it shows url on the top of alert box. how can i remove this url ? The url is showing when my site is redirected from another site.

You can't.
The alert function does not, and cannot, provide a title.

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Show a popup modal on page exit using Javascript [duplicate]

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How can I detect a user about the exit the page? [closed]
(3 answers)
Closed 2 years ago.
Does anyone know if it's possible to show a popup model on page exit(close tab/refresh/go back) with images and text using Javascript/jQuery?
The closest thing I found was beforeunload but it seems to only show an alert prompt with a predefined message.
I don't think modern browsers support a custom message in the beforeunload modal popup. Check this post for a discussion on browser compatibility

How to hide address bar any browser main page, using javascript? not on a new windows.open [duplicate]

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Hiding the address bar of a browser (popup)
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Closed 6 years ago.
I have a exam on html with php, and i just want disable the address bar and even make it on a full size.
May i change it before the login but, i dont know how to do that by php.
Thank you for you help.
Hit F11.. There is no other way to do this.

Change the look of alert box in JavaScript [duplicate]

This question already has answers here:
How to change the style of alert box?
(13 answers)
Closed 7 years ago.
I want to change the look of this alert message:
alert("Hello world");
Is there any way to do this?
You simply cannot, the styling is handled by the browser and is different in every browser. You could use a different solution such as a jQuery UI Dialog https://jqueryui.com/dialog/
refer to this answer for your alert box styling. It suggests to use jQuery ModelBox instead.

How can I customize Window.Confirm() dialog in Javascript? [duplicate]

This question already has answers here:
Javascript Customize Confirm with "Yes" or "No" [duplicate]
(4 answers)
Closed 8 years ago.
var val= confirm("Are you sure to cancel?");
By default, the above line of code will bring a popup with two choices, Ok, Cancel and Ok will be the default choice. I want change the default choice to be Cancel and I would like to swap the both button's position. So Cancel will be displaying first and Ok comes later.
How can I achieve this?
This is not possible if this behaviour is important I would look for a JavaScript library that achieves what you want for instance http://getbootstrap.com/javascript/#modals

How to remove site url from top of javascript alert? [duplicate]

This question already has answers here:
Change Title of Javascript Alert [duplicate]
(6 answers)
Closed 9 years ago.
I am using simple alert function of JavaScript that shows site URL when it executes.
How can I remove site url from top of javascript alert?
Is there any way to customize javascript alert?
You cannot remove that. That's the default behaviour of a JavaScript Alert. The title attribute of a alert box cannot be modified.
You can make use of JQuery Alert Dialog box to change the title as per your needs.

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