I am trying to run a JS script on a website (not my own) and I want it to refresh the website, in order to check for updates. However, I have only found code online for reloading the entire page (location.reload(true), etc...), which clears any code that I have running through the console. I am new to JS so is there any way to refresh a page and keep the JS code running? Also might there be a way to only reload load a certain portion of the page?
Basically,
Reload website without stopping code
Using jQuery you can easily load any part of a page from a URL using AJAX. To fill the body element with the contents of a URL:
$('body').load('/page');
Your URL can respond with the segment of HTML you want to render, or you can request a full web page and grab just the segment you want buy adding a selector:
$('body').load('/page body');
The page isn't technically refreshed, just the HTML content inside the body (or whatever element you select) is replaced. Any previously loaded header content like JS remains and keeps running.
There is no way to actually refresh the entire page without stopping the execution of the JavaScript code.
For doing updates on the page there would be two possibilities:
Use of AJAX (Asynchronous JavaScript and XML) to check for new updates on the page. There are some very good tutorials out there on the internet – just google »AJAX JavaScript«.
Use of IFRAME. Make a page and stuck all the stuff in it and then put that page in an iframe and then reload the iframe instead of reloading the entire page.
Hope I could help you.
Related
I was trying to make an application in SharePoint and wanted to make it so that if you click on a button, it redirects you to a page and when that page loads I wanted it to instantly redirect the user to another page. ( I couldn't get the button to just redirect to the page I wanted on click, so that's why I tried doing it this way. ) I did this using a jQuery / JavaScript script. I'm new to making scripts so I was just testing and I ended up making this script:
<script type="text/javascript">
$(document).ready(function(){
Redirect();
});
function Redirect(){
$(document).load("url");
}
</script>
My problem is now that whenever that page loads, it just loads a blank page. But I can't get to the edit screen because it instantly redirects me to a blank page. I tried turning off JavaScript in Google Chrome but even though I was able to load the page without redirecting, I wasn't able to get to the edit page because it's in a jQuery AJAX drop down menu which obviously also doesn't work if JavaScript is turned off.
I would appreciate any help
EDIT: When I say edit screen I mean the place where I can edit the script. To do that I have to press a button on the page, but I can't do that since the page instantly redirects to a blank page.
Use the webpart maintenance page which allows you to remove and manage web parts without visiting the page, the instructions are as below.
Lets say your page is example.com/sites/default.aspx add the query string ?contents=1 to the page it will take you to the manage web parts page you can remove the script editor web part from there.
The other way is to use SharePoint designer to remove the web part this will also help you achieve the same result.
I'm trying to write a script (bookmarklet, really) which has two parts. At the end of the first part, I want to click a button on the page which takes me to a second page. I then want the script to continue running after the second page has loaded. Is this possible?
Every web page load is treated separately by the browser, so there is no way to get a script to continue running where it started off. Here are a few solutions though:
1) Save state to cookies, then read the cookies from the script on the second page to pick up where you left off. For instance, you could save the user's name "John Doe" to a cookie in the first page, then the script in the second page could load the user's name from the cookie. This is probably what you'll want to end up doing.
2) Instead of loading a new page in the browser window, load your new page in an iFrame, and the script running in your outer window won't be interrupted. You can reach inside iFrames with JavaScript as long as they are on the same origin.
You aren't able to load a new page and continue a script from the previous page. But you could ajax load the new page, use the history API to modify the URL, and your script would keep running.
The following is that I'm trying to achieve
Every time 'www.google.com' loads, a script/function triggers. However, the functions itself reloads the page via 'location.reload();'
Basically, an infinite loop of reloads.
Script reloads page -> Script injected -> Script reloads page -> etc.
I want the tab # google.com to keep refreshing while I work/browse the net via other tabs in the same Chrome browser Window.
How should I approach this. I've been looking into background and content scripts but I'm stuck. Assistance is greatly appreciated.
I presume you have no problem getting a content script to run once on page load. I'm not going to help you with that...
You're going to have to
have the content script send a message to the background script
use chrome.alarms.create(string name, object alarmInfo) in the background script
listen for the onAlarm event
use chrome.tabs.sendMessage() to send a message to make the content script reload the page
This is, of course, totally untested!
I am building an application where I want to load a page from another server into my page. The particular page that I'm pulling data from depends on a query that is being run (with OAuth access) on that foreign server. Once I get the URL for that page, I am loading it in an iFrame and displaying it on my page.
The problem is, the URL that the query gives me is actually to a page that forwards three times before getting to where I actually want to go. To make things more complicated, it also has frame-buster code on the initial page. I set my page to redirect to a page that returns a 204 status on page unload so as to beat the frame-buster, but now it's just stuck displaying the initial blank page instead of the content I want, which is at the end of three redirects.
My initial idea was to try to capture the code for the outgoing location request on page unload. I had hoped to be able to see where the user is being redirected to and load that request inside the iFrame instead. Repeat three times to get the correct page in the iFrame. Intuitively, however, this felt like it shouldn't be able to work, and of course it does not because letting pages see where their users are going to upon leaving a site would be a major privacy issue.
Next, I was thinking that maybe I could just parse each new page in turn as it was loaded into the iFrame to find the script for the redirect. I'm pretty sure it's done on the server side, however, since looking at the code I was getting didn't turn anything up.
I started looking for ways to maintain that redirection inside the iFrame. That is, allow the redirect to occur, but force it to stay inside the iFrame while also preventing the frame-buster code from doing anything. This would be the easiest solution, but I can't find a good way to do it. Right now, I just have a blank page loading inside an iFrame, and I think there's something on the server side that performs the redirect that isn't running in the iFrame. The frame buster code only prevents the entire document from changing, not the iFrame. Is there a good way to do this or am I going about things the wrong way?
To prevent the frame buster, from here:
<script type="text/javascript">
var prevent_bust = 0
window.onbeforeunload = function() { prevent_bust++ }
setInterval(function() {
if (prevent_bust > 0) {
prevent_bust -= 2
window.top.location = 'http://server-which-responds-with-204.com'
}
}, 1)
</script>
load the first page via curl locally, strip the busting code, make all links absolute and display that in the iframe.
it should redirect as espected and do your merry thing.
Good luck making all the urls in the document absolute. Dont forget javascript urls and functions you might need to override by pasting in your owncode after the script tags.
Is it possible to load the entire page using PJAX and change the browser's page url?
My purpose is to prepare first the response to make sure that it would be loaded without refreshing the page in a long time after clicking in the menu-page-link or execute a javascript function.
I tried using PJAX but the one that provides a response data for the selected element to load where the request has to display.
Like:
$('a').pjax("#container", { fragment: "#container" });
I want and I tried:
$('a').pjax({url:"new-page.html"});
But it didn't work.
I'll appreciate your help and suggestions. Thank you!
Yes it is very much possible using jquery PJAX plugin , you can keep the header footer static and change the body content using PJAX , and yes it will change the url too along with browser history stack i.e. almost making it like a normal navigation, except that page wouldn't be refreshed.
But the container needs to be same in both the urls. You can try :
$(document).pjax('a', '#pjax-container')
You can load page via ajax but you cannot change page url, when you change it, it will automatic redirect to that address. This prevent phishing page, fake url.... But why you need to load page via ajax then change the url, why don't just change the url?