I've got an ASP.NET page that takes a long time to download and returns partial results as it's loading (as per my previous question). On the page I have some links to download files, ie. the response headers contain "Content-Disposition: attachment", so that the browser doesn't navigate away from the page. However, if the user clicks one of these links while the page is still loading it stops loading - normal behaviour, but not what I want in this case. I can get around that by adding target=_"blank" to the links, but this momentarily opens a new window and the closes it again (once the browser realises it's an "attachment"). Is there any way to avoid having those links stop the current page load without this new window trick? JavaScript is OK.
You could put a hidden iframe on the page and target that. (or use javascript to generate one dynamically).
Not sure it if will help, but try to add an iframe to the page and have your links do document.getElementById('your_iframe').location = 'your_url'
You could try a meta refresh
<meta http-equiv="refresh" content="2;url=http://path.to/file.download">
Related
I want to know how some web pages move between different PHP pages without reloading the entire page. Here some divs stays the same. If I use AJAX i cannot share the link of the page, so I need to do this. Thank you.
You have to use AJAX in order to do that.
BUT if you want to be able to share the link or handle reload ou need to build a navigation system using # and some javascript around it.
There is a lot of example for doing that on the web.
https://www.google.nl/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=tutorial%20build%20ajax%20navigation
You could just load a new page and include the same divs of the page :
include 'div1.php';
You could use the other answers below and just use ajax but also build a url at the same time so you can navigate back to the same structure of the page.
clicking the link modifies the url, eg:
document.title = document.title + '?div1=true'
Modify the URL without reloading the page
and then just does an ajax call to load a new section. And on first page load, parse the url to check what divs to load.
you could use iframes:
<iframe src="/div1.php" id="div1"></iframe>
And clicking a link loads new stuff to a specific iframe.
I have a signup page that has links to 3 different pages. I want to preload all 3 of those destination pages while the user is still on the signup page. This way, the user does click it, it will load immediately.
Is it possible to do this using AJAX or an iframe and have the contents of the URL cached to by the browser?
Now chrome supports dns prefetching. But it is pretty new and not all browsers supporting it.
You can load all the resources(scripts, styles, images) in the upcoming pages in your signup page dynamically. In this way browsers will cache the resources. And, if you are using partial templates, you can preload that also.
This can be achieved with ajax.
On page load start loading the three pages, as soon as you receive each html file place them in three different hidden divs, when the user clicks a link hide the correct div. Remember to check what happens if the user clicks a link before you get your html back
This is an issue I ran into before and I am still unsure as to why it happens.
The page in question is - http://nexrem.com/dragontimer/testdir/mobile/index.html
When you hit the Select server button, the page flashes the content that should be there, then its blank! One way I know this can be fixed is by adding data-ajax="false" to the link; however if I do that, then I run into another problem: on iPhone if I add the page to my home screen and then run it - click the 'Select Server' - opens up a browser instead of staying within the web app.
My goal is for users to be able to add the page to their home screen, with no url bar and just run all pages from within. It seems that having <meta name="apple-mobile-web-app-capable" content="yes" /> and the data-ajax="false" together isn't working out.
So basically 2 things:
How can I fix the screen flashing and displaying blank (unless refreshed)
or how can I have the web app with no toolbar and not open the browser every time user clicks buttons?
Thank You
Edit: Here is the code for index.html and servers.html
index.html - http://pastebin.com/Qh5s7QRp
servers.html - http://pastebin.com/Exv2MJrS
In your file index.html, include rel="external" instead of data-ajax="false" inside the definition of your link Select server.
So, you should have this instead:
Select server
You may also need to replace every data-ajax="false", that you included in the <a> links of both your HTML files index.html and servers.html, with rel="external".
Check the online doc for more information about rel="external" at http://jquerymobile.com/test/docs/pages/page-links.html :
Links that point to other domains or that have rel="external",
data-ajax="false" or target attributes will not be loaded with Ajax.
Instead, these links will cause a full page refresh with no animated
transition. Both attributes (rel="external" and data-ajax="false")
have the same effect, but a different semantic meaning: rel="external"
should be used when linking to another site or domain, while
data-ajax="false" is useful for simply opting a page within your
domain from being loaded via Ajax. Because of security restrictions,
the framework always opts links to external domains out of the Ajax
behavior.
Hope this helps.
I'm having a performance issue on my web application when the user hits the "refresh" button on my webpages. The behavior is shown below:
$("#reloadbutton").click(function(){
location.reload();
});
It reloads all of the CSS, JS, and image files that the page needs, as it should. The only problem is that it does this for every other page request, such as clicking on a link to go to another page.
If I just hit the F5 button, it'll reload all of the CSS, JS, and image files, and then if I go to another page, it won't try and reload those files once I go to that other page. But if I hit the reload button on the page itself, it'll reload all of those files on every page request, and I don't want it to do that.
So I have a two part question:
How can I refresh without having the browser fetch all of the CSS, JS, and image files (because I want to minimize the time it takes to refresh each page)?
Why am I getting different behavior when using location.reload() as opposed to using the browser's own reload button?
Note: I'm currently using the latest version of Firefox
use the
$("#reloadbutton").live("click",function(){
location.reload();
});
and you can do this by making ajax call after every some second
$("#reloadbutton").click(function(){
location.reload(false);
});
As per the Mozilla developer network, location.reload(); can take a parameter. When it is true, location.reload(true);, it causes the page to always be reloaded from the server. If it is false, location.reload(false);, or not specified, the browser may reload the page from its cache.
I am building a web application which I intend it to work like a traditional 'software': as few page reload, and page redirect as possible.
My solution to page reload and redirect is to have them as 'tabs' within the app, so when you click on another tab, the div of your current content will shrink to 0 width.
My question is: how do I prevent the content (writtent in JS, w/ PHP backend) in a tab to load unless when it's clicked on?
(Assuming this is what I should do to reduce unnecessary load)
Just don't load it until the link/button/etc. to the tab is clicked.
See also the jQuery tab implementations.
If your back-end is in PHP, you should control what you send to the client from there.
By the time the js gets the code, it is too late to control what not to load. You can hide it, or remove it, but it has already been loaded.
So, to reduce unnecessary load, and as a good practice, you should only send to the client the active 'tab'. That has to be done in PHP in your case.