Check if iframe loaded js

Although it may not be terribly common, there are times in which you may need to check if a page is in an iframe. Easy enough, right? So much so that you can run the code within the Chrome Developer Tools, Firebug, or whatever your tool of choice may be, and then see the result directly in the console.

Of course, this will also vary based on the grid, the CSS, and other factors that you have implemented such as the height of the primary content container.

check if iframe loaded js

January 21, at am. The main use for this is a frame-breaker. It can for example be used for frame busting preventing anyone to put your website in an iframe : if top! January 23, at am.

Same deutz fahr deutschland gmbh

You must be logged in to post a comment. Kinsta offers premium managed WordPress hosting for everyone, small or large.

A321 fsx

Powered by Google Platform, they take performance to the next level. Get started with a free migration today. MeridianThemes is a premium WordPress themes marketplace that features an exclusive collection of hand-crafted WordPress themes featuring elegant, and modern designs. Design Bombs is a website full of resources, how-to guides, tips and tricks, and freebies for designers and developers.

If you want to learn about graphic design, building WordPress websites, and get incredible discounts and deals on popular resources, go check out this site. Looking for guides on installing plugins, themes, automated installs, and setups, to creating and setting up pages for your website?

Meta Box is a WordPress plugin that helps you build WordPress custom fields instantly and effortlessly. Lightweight and powerful, Meta Box is a must-have plugin for WordPress developers. Take a look. They have free training videosglossaryand more. Tom McFarlin. Search for:.Help to translate the content of this tutorial to your language!

There are few peculiarities though. If we have a script after the style, then that script must wait until the stylesheet loads:. The reason for this is that the script may want to get coordinates and other style-dependent properties of elements, like in the example above. Naturally, it has to wait for styles to load. For instance, if the page has a form with login and password, and the browser remembered the values, then on DOMContentLoaded it may try to autofill them if approved by the user.

The load event on the window object triggers when the whole page is loaded including styles, images and other resources.

This event is available via the onload property. The example below correctly shows image sizes, because window. When a visitor leaves the page, the unload event triggers on window. There exists a special navigator. It sends the data in background. The transition to another page is not delayed: the browser leaves the page, but still performs sendBeacon.

You can find more information in the chapter Fetch API.

Bollettino ufficiale della regione puglia n. 166 del 04/12/2014

But we can use another event — onbeforeunload. If a visitor initiated navigation away from the page or tries to close the window, the beforeunload handler asks for additional confirmation. For historical reasons, returning a non-empty string also counts as canceling the event. The behavior was changed, because some webmasters abused this event handler by showing misleading and annoying messages.

There are cases when we are not sure whether the document is ready or not. So we can check document. The readystatechange event is an alternative mechanics of tracking the document loading state, it appeared long ago. Nowadays, it is rarely used. The working example is in the sandbox.

The numbers in square brackets denote the approximate time of when it happens. We want to make this open-source project available for people all around the world. Tutorial map. We must use addEventListener to catch it: document. Scripts that are generated dynamically with document. Leave now? Previous lesson Next lesson. Comments read this before commenting… If you have suggestions what to improve - please submit a GitHub issue or a pull request instead of commenting.

If you can't understand something in the article — please elaborate. Chapter Document and resource loading. Edit on GitHub.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

Zkteco access control terminal

The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information.

I am writing an iframe based facebook app. Now I want to use the same html page to render the normal website as well as the canvas page within facebook. I want to know if I can determine whether the page has been loaded inside the iframe or directly in the browser?

Browsers can block access to window. IE bugs also take place. Here's the working code:. When in an iframe on the same origin as the parent, the window. Otherwise, if browsing in a top-level context, or if the parent and the child frame have different origins, it will evaluate to null. If the page that gets loaded, lets call it special. Now lets say that the special. Lets say instead of clicking on the original link like normal, and loading the special.

When that new tab loads with no parent frames at all! IE will enter an endless loop of page loading! The accepted answer didn't work for me inside the content script of a Firefox 6. The strange thing about this output is that it's always the same regardless whether the code is run inside an iframe or the top-level window.

On the other hand Google Chrome seems to execute my content script only once within the top-level window, so the above wouldn't work at all. Without iframes this printsin a top-level window containing one frame it printsand in the only iframe of a document it prints This allows my extension to determine in both browsers if there are any iframes present, and additionally in Firefox if it is run inside one of the iframes.

I'm not sure how this example works for older Web browsers but I use this for IE, Firefox and Chrome without and issue:. One way to defend against clickjacking is to include a "frame-breaker" script in each page that should not be framed.

Javascript callback when IFRAME is finished loading?

The following methodology will prevent a webpage from being framed even in legacy browsers, that do not support the X-Frame-Options-Header. Since you are asking in the context of a facebook app, you might want to consider detecting this at the server when the initial request is made. Since you probably need to check and use this data anyway in your app, use it to determine the the appropriate context to render.

I actually used to check window. As the comments suggest hard comparing with window. Not sure if this will work if iframe is exactly the same webpage as parent.Sign in to post your reply or Sign up for a free account. By using this site, you agree to our updated Privacy Policy and our Terms of Use. Manage your Cookies Settings. Join Now login. Ask Question. I have an IFrame in my page.

From this i running a script to load the IFrame and to track whether the IFrame gets loaded properly or not. How can i track this Oct 22 ' Post Reply. Share this Question. Use the onload event. Yeah that i thought and tried to do but failed Basically the IFrame is getting updated asynchronously by Ajax. Post the code that you're testing with. I am testing the code with site Orkut There is an IFrame and Iframe is getting loaded by asyn Ajax call.

All these are taking care of by site itself. How can i track the response status when IFrame gets loaded successfully Is it possible Oct 23 ' Is the site loaded into the iframe from the same domain? No no. Post your code or a link to a test page.

Short plays for middle school

Can you get the response from the Ajax call? How did you use the onload event?

Walnut cracking machine

I am not using onLoad event because page is loaded by Ajax Call. And one more thing do you have any Orkut Account only then i can do further communication with youI am using the following to populate an element. I am now using. I have used the following within the element:. I want to call an animation to hide the loading gif using a timeline so is there a way to call a Hype Timeline from the element. I tend to use global variables that store anonymous functions to use throughout my document and I store these in a Hype function I call on scene load.

Detect iframe loaded JavaScript. I am using the following to populate an element document. When the iframe is loaded hide the animation, How do I detect when the iframe has loaded?

How to check a webpage is loaded inside an iframe or into the browser window using JavaScript?

Cheers Steve Warby. I see the unload function but as usually its a guessing game as to where to put it. Cheers Steve W. Error in cartLoaded: TypeError: null is not an object evaluating 'document. Cheers Steve Warby iframeTest. If so how do I approach this? DBear August 19,pm I now get this error on the unload event TypeError: null is not an object evaluating 'document. DBear August 20,am Cheers for that it works. Onto the next phase.

check if iframe loaded js

I would also like to know how to call my Hype javascript functions as well. DBear August 20,pm Posted by: admin November 22, Leave a comment. Also I only tested in the latest chrome. An exception will be thrown if the src is from a different domain though.

I have had to do this in cases where documents such as word docs and pdfs were being streamed to the iframe and found a solution that works pretty well. The key is handling the onreadystatechanged event on the iframe. First somewhere in your code startup I do it inline any where after the iframe add something like this to register the event handler:. I wanted to hide the waiting spinner div when the i frame content is fully loaded on IE, i tried literally every solution mentioned in Stackoverflow.

Com, but with nothing worked as i wanted. And that exactly what happened. So, i wrote this small script, and worked like magic:. I have a similar code in my projects that works fine. Adapting my code to your function, a solution could be the following:. Maybe you have an empty innerHTML because one or both causes : 1.

I think the load event is right. What is not right is the way you use to retreive the content from iframe content dom.

What you have to do is to access the content document with iFrameObj. This returns the dom of the page loaded inside the iframe, if it is on the same domain of the current page. I had a similar problem as you. What I did is that I use something called jQuery. What you then do in the javascript code is this:. It seems as you delete you iFrame before you grab the html from it.

Now, I do see a problem with that :p. Of course that only works when you have control over the iframe content. Tags: javajavascript. February 26, Javascript Leave a comment. How can I solve this?

Add menu. First somewhere in your code startup I do it inline any where after the iframe add something like this to register the event handler: document. What you need is the html of the page loaded in the iframe not the html of the iframe object. I would retreive the content before removing the iframe. It waits for the dom to load fully the first time you open the page.

Now, I do see a problem with that :p Hope this helps :.In this new Web 2. Iframes provide a level of security since JavaScript access it limited by domain name, so an iframe containing content from another site cannot access JavaScript on the containing page. This cross-domain restriction goes both ways as the containing page also has no programmatic access to the iframe. In all ways, the containing page and the iframed page are cut off from communication which has led to the cross-document messaging API in HTML5.

The missing piece of intrigue in most discussions surrounding iframes is JavaScript object ownership. The window object representing the iframe content is the property of the page that was loaded into the iframe. When the domains match, the containing page can access the window object for the iframe. The iframe page can also retrieve a reference to the iframe element in which it resides by using the window. Trying to determine when an iframe is loaded is an interesting task due the ownership issues surrounding iframes.

Since the iframe element is owned by the containing page, you never need to worry about cross-domain restrictions. An iframe loading local content can be monitored just as well as an iframe loading foreign content experiment. Example code:.

This works in all browsers except Internet Explorer even version 8! Pretty disappointing. It seemed that Internet Explorer was going to foil my day…again.

In my specific case, I was dealing with content from the same domain. The interesting part of this approach is that you have to assign the event handler after the iframe element has been added to the page. This approach works in Internet Explorer and Firefox for same-domain pages only. I had resigned myself to using one method of detecting an iframe loading for Internet Explorer and another for every other browser, so I continued on my task.

Next, I had to set document. When using different subdomains, setting document. For example, if I had to load an iframe page from www2. However, if I set document. A single line of code, ideally placed at the top of the page, is all it takes:.

This equalizes the domain difference and allows everything to work as if both pages were from the same domain. Or so I thought. A relative path automatically prepends the domain on which the containing page was loaded from www.

That means a comparison of wnczonline. Once the iframe page has been loaded, however, everything works fine.

check if iframe loaded js

But how do you know once the iframe page has been loaded?