Skip to main content

Will window.close work only work if the window shares a domain with the window trying to close it?

I'm trying to understand when window.close() will / won't work. I know there are some requirements around the window being script closeable etc., but it seems like there are some additional requirements that I can't find formally laid out (at least, not laid out in terms I can't understand with my current javascript knowledge.)

At a high level, my use case is as follows:

  • a user clicks a button
  • I do some stuff and then do something like windowRef = window.open("http://example.com/somedocument.pdf","popup").
  • Once the user takes clicks a different button, I want to be able to call windowRef.close() and have it close the pdf I opened in a popup.

My current implementation works as long as the url I'm opening shares a domain with the window that's trying to close it, and not otherwise. That's fine (I can guarantee the PDF will come from the same domain as the window trying to close it) but I'd like to understand why this doesn't work for URLs with different domains (and if there are other cases where it won't work that I haven't run into yet).

Based on some experimenting in my application / the browser console, it seems like window.close() will work if the url I'm opening shares a domain with the window I'm trying to close it from, but not otherwise. That's purely based on testing / guessing though, I haven't found documentation explaining why this might be the case.

I've read the MDN documentation for window.close, but I can't seem to find it documented when exactly this function will work, and when it will just return "undefined" (but not log an error like "Scripts may not close windows that were not opened by script.)

I thought this might have to do with the Same-origin policy, but that article calls out window.close() as not having the same-origin requirement, and some tests I ran seem to confirm this.

Can someone explain to me what needs to be true for me to be confident that, if I'm opening a pdf in a popup window using window.open() to send a window to a URL to the pdf, I can later close that popup with window.close()

Via Active questions tagged javascript - Stack Overflow https://ift.tt/VZvXegw
Labels:

Comments

Post a Comment

Popular posts from this blog

Where and how is this Laravel kernel constructor called? [closed]

Where and how is this Laravel kernel constructor called? public fucntion __construct(Application $app, $Router $roouter) { } I have read the documentation and some online tutorial but I can find any clear explanation. I am learning Laravel and I am wondering where does this kernel constructor receives its arguments from. "POSTMOTERM" CLARIFICATION: Here is more clarity.I have checked the boostrap/app.php and it is only used for boostrapping the interfaces into the container class. What is not clear to me is where and how the Kernel class is instatiated and the arguments passed to the object calling the constructor.Something similar to; obj = new kernel(arg1,arg2) or, is the framework using some magic functions somewhere? Special gratitude to those who burn their eyeballs and brain cells on this trivia before it goes into a full blown menopause alias "MARKED AS DUPLICATE". To some of the itchy-finger keyboard warriors, a.k.a The mods,because I believe in th...
Post a Comment
Read more

Why is my reports service not connecting?

I am trying to pull some data from a Postgres database using Node.js and node-postures but I can't figure out why my service isn't connecting. my routes/index.js file: const express = require('express'); const router = express.Router(); const ordersCountController = require('../controllers/ordersCountController'); const ordersController = require('../controllers/ordersController'); const weeklyReportsController = require('../controllers/weeklyReportsController'); router.get('/orders_count', ordersCountController); router.get('/orders', ordersController); router.get('/weekly_reports', weeklyReportsController); module.exports = router; My controllers/weeklyReportsController.js file: const weeklyReportsService = require('../services/weeklyReportsService'); const weeklyReportsController = async (req, res) => { try { const data = await weeklyReportsService; res.json({data}) console...
Post a Comment
Read more

How to show number of registered users in Laravel based on usertype?

i'm trying to display data from the database in the admin dashboard i used this: <?php use Illuminate\Support\Facades\DB; $users = DB::table('users')->count(); echo $users; ?> and i have successfully get the correct data from the database but what if i want to display a specific data for example in this user table there is "usertype" that specify if the user is normal user or admin i want to user the same code above but to display a specific usertype i tried this: <?php use Illuminate\Support\Facades\DB; $users = DB::table('users')->count()->WHERE usertype =admin; echo $users; ?> but it didn't work, what am i doing wrong? source https://stackoverflow.com/questions/68199726/how-to-show-number-of-registered-users-in-laravel-based-on-usertype
Post a Comment
Read more