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How to push user to external (incomplete) URL. i.e google.com NEXTJS

Im trying to push a user to an external url but that problem is that the url is incomplete, for example it may look like this:
google.com
If I used link or even just an tag in Nextjs, it will only link the user to an internal page. I want the user to be redirected to an external page. Here is my Code:
<a href={`${data.link}`}>
<div className={css.visitLinkContainer}>
Visit Link
</div>
</a>
The data.link may have a url that is incomplete like this: google.com. How can I go around this problem?

By default, browsers use relative URLs. You can tell the browser to use an implicit protocol by prepending //.
<a href={`//${data.link}`}>Visit Link</a>
If some of your URLs can contain the protocol (http[s]) you will need to remove it first.
const href = new URL(data.link).host;
<a href={`//${href}`}>Visit Link</a>
Additional considerations when linking to external domains - if you link to an external domain and use target="_blank" you should also set rel="noreferrer" to protect your user's privacy and increase site security.

You could consider using nextjs-redirect libray

Is possible to read script tag src URL content using JavaScript/jQuery

Please guide me. Is possible to read script tag src URL content using JavaScript/jQuery. Please don't suggest JSON/Ajax/iframe options.
I have tried like
<script src="http://www.test.com" id="test">
document.getElementById('test').src
but it give only src URL.
My Exact requirements is,
I have two application, each in different web server with www.siteA.com and www.siteB.com.
In Server2, I have cross origin and iframe restriction to access the application. Example: If a request is coming from server1(siteA) to server2(siteB) via Ajax or iframe, it's restricted to access the siteB page content. But If I load siteB in script tag it's loaded, but I'm not able to get the content.
So I mentioned above, don't suggest iframe and Ajax. Help me to achieve this.

The best way really is AJAX, but it does sound like CORS is an issue for you. The only other option I can think of would be to open the page in a new browser window, although I don't know what kind of user experience implications that will have on your application.
You can open a new browser window by:
function showContent(){
var url = document.getElementById("test").src;
window.open(url, "_blank");
}
Although if you take this route, you shouldn't put the url on a script tag, because the browser will download it once (via the script tag), and then a second time on the window.open.

Change path of iframe on page change

I have two websites www.mywebsite.com and www.otherwebsite.com. I use iframe to redirect mywebsite.com to otherwebsite.com. Is there a to change the path of url on page change. For example when a link otherwebsite.com/contact.html is clicked the frame adds /contact.html to mywebsite.com making it www.mywebsite.com/contact.html. I tried adding the code below to the page but it doesn't seem to work on the frame.
history.pushState(null, "A new title!", "contact.html")

what you trying to do is not possible without a server side language (for example php).
this is because you need to define filename as a variable for your frame to load it with another site.
but you can do it at some static way like making the real contact.html and code it with a frame that shows contact.html for another side ... but i dont think that would be a dynamic way without any server side coding...

How does a javascript download link work?

I've been using the Microsoft Technet site and you can download the ISO files by clicking a link on the page. The element is like this:
<a href="javascript:void(0)" onmouseout="HideToolTip()"
onmouseover="ShowToolTip(event,'Click here to download.')"
onclick="javascript:RunDownload('39010^313^164',event)"
class="detailsLink">Download</a>
I wasn't able to find the RunDownload() method in the scripts. And I wondered what it is likely to do. I mean usually when I provide a link for someone to download I provide an anchor to it:
download
But this is working differently what is the script doing? Because even when I ran 'Fiddler' I wasn't able to see the actual download location.

there's no such thing as a "javascript download" link. Javascript can open a new window, or simulate a click on a link.
What you have to find is which url the function triggered by this click will lead to.
here's an example of how to do it:
Suppose we have a:
<a id="download">download Here §§§</a>
then this jQuery code:
$('#download').click( function() {
window.location.href = 'http://example.org/download/ISO.ISO';
} );
will redirect to the URL http://example.org/download/ISO.ISO. Whether this url starts a download or not depends on HTTP headers and your browser, not on what javascript do.

Download location can be a url-rewritten path. This mean that maybe some parameters are given with HTTP Post and some HTTP handler in the Web server or web application may be getting some arguments from the HTTP request and write file bytes to an HTTP response, which absolutely hides where the file is located in the actual server's file system.
Maybe this is what's behind the scenes and prevents you to know the file location.
For example, we can have this:
http://mypage.com/downloads/1223893893
And you requested an executable like "whatever.exe" for downloading it to your hard disk. Where's the "http:/mypage.com/downloads/whatever.exe"? Actually, it doesn't exist. It's a byte array saved in a long database in some record, and "mypage" web application handles a request for a file that's identified as "1223893893" which can be a combination of an identifier, date time or whichever argument.

What I think the function RunDownload might do is that it might inform the server using get request to the server that another download is about to happen , or it might need to run the download background by setting the target attribute to an iframe so the user won't need to open another tab and download the file on the same page.
Download
JS
var runDownload=function(){
e.preventDefault();
increaseDownloadCountOnTheServer(location);
window.location.href="filelocation.exe";
}

Initiating a download with javascript

I need to dynamically initiate a download with javascript. I have seen how people do this by doing something like
window.open("some url", "Download");
but I need to do it without changing the url of the current page (and not using frames if I can help it, or created and destroying a frame dynamically). Anybody know how to do this?

You don't need window.open(). It's plain ugly and prone to popupblockers (where you have no control over in clients). Just window.location is sufficient if the response header of the requested download URL contains Content-Disposition: attachment. This won't change the current URL in the browser address bar nor the current page, but just pop a Save As dialogue.
E.g.
window.location = 'http://download.winzip.com/winzip145.exe';