Only a part of the page loads on first load - javascript

For some reason only the header of this page loads on first load. On subsequent page loads, the entire page content is loaded. What may be the problem for such an issue ?

Your loading a lot of Javascript files. Try to see if some of theese maybe are the problem by taking them out and test again.

there seems to be an unclosed element
see validation here
not to be rude but you are also using obsolete tags

Related

Recall external JS files after page transition finish

I have tried to implement this kind of script (Page Transition): here
Everything is going fine as demo provided. But only 1 problem that I cant figure out is:
I have 2 HTML files which is index.html & index2.html. On index.html I put the link with the page transition effect after clicked it goes to index2.html which is on index2.html I was put in some alert script using body on-load method.
Supposedly in normal practice, the alert will appear as normal we seen for debuging. But it doesn't appear anything. Seem like it doesn't load any script after page transition done.
Can somebody give me a clue to solve this? What I have tried is using :
location.reload(); window.location.reload(); etc.. till I don't have idea to fix this :(
*location.reload() works on desktop browser but doesn't work on mobile. My priority target browser is on mobile version.
Please help & Many Thanks
for demo purpose and needs help : here
It wasn't executed because the page never really loaded. The way that page transition script worked is by loading the content of the target page via ajax, replacing the entire content of the page with it.
From the page you provided, it seems like the script accepts a callback function to be called when the page finishes loading, you can put your 'loaded' script there. But keep in mind, what is being executed is the script on that first page.
I don't know what you are trying to make, but I guess it would be better for you to look into a proper single page app with URL matching. There are frameworks like Backbone.js that can help you with this.

How to stop page load in html static page

Is there in HTML (javascript) or other static html tech
can:
Stop page loading (if browser does not download yet)
Stop page rendering (from where the code placed)
Stop javascript executed (from where the code placed)
Simply put, is there a code like
<script>window.StopWhateverBelow()</script>
To let browser totally ignore whatever below the code.
UPDATE
I understand the browser may already download the whole thing. What I want is, from the code, page should stopped, for example: if I put the code just after <body> visitor should see blank page, if I put the code in middle of the page, page should be just half like you pressed ESC
ANSWER
As bukko suggested, comments done the trick. But not full, just half
If you put <!-- in html page, the rest will be ignored. And in Javascript
document.write('<!--');
Done the trick.
For about make sense:
Here is how this code make sense: when you page load some offpage script, the script is dynamic. When the script code found something wrong (or match some condition), you have one more option to stop the page from rendering, loading, download...
You could do window.stop(); for most browsers besides Internet Explorer. For IE, I had to use document.execCommand('Stop');
If you already have html comments on your page, #bukko's solution doesn't fully work. Stuff after the html comment will get rendered normally.
Something else to try is:
document.write('<script type="text/undefined">')
The rest of the document gets interpreted as part of the script tag, and because the script isn't text/javascript, it gets ignored.
Worked for me, thought I'd share it.
Edit
I've seen the script trick not work in Chrome.
This does work, but I have not done extensive browser testing:
document.write('<style type="text/undefined">')
window.stop(); //works in all browsers but IE
if ($.browser.msie) {document.execCommand("Stop");}; //works in IE,
document.execCommand works in IE, however it does stop some of FF, NS and some other browsers' functions. Like displaying GIF's animation for example. Using "if browser is IE" makes these two codes work perfectly in all browsers.
Well, there is:
<!--
terminated by
-->
for HTML, but scripts will ignore this.
What you are asking makes no logical sense. Simply for two reasons:
Data is ALREADY sent to the user (HTML / JS) so even tho if you COULD hide content, the data would sitll be there for a user to see (if they view source for instance).
Why would you stop 'execution' of a page? It loads simple html structure and reults in a visual display, you should focus on the server site (php for instance) to hide or not send the content in the first place.
If you want to visually hide elements tho, you could use CSS styles (hide divs or the like) with simply adding style="display:none;" to a div like so:
<div style="display:none;">
This text will be downloaded by the user, but hidden from view due to CSS inline style
</div>
If you want to add commenting (thats just for your reference), then use comment formatting:
<!-- this is a comment and will not show up to a user -->
Reference for comments: http://htmlhelp.com/reference/wilbur/misc/comment.html
put window.Stop() wherever you want to stop the page from getting renderred
You could also hide the body like that:
var style = document.createElement("style");
style.innerHTML="body { display:none !important; }";
document.getElementsByTagName("HEAD")[0].appendChild(style);
HTML is static content so the server reads whatever you have written in the file unless you comment it out. For a dynamic file like what you are asking for you need to use php which can do this type of thing.
Just not much related to the question, but I thought it may be useful for some persons. If you want to jump to other page during page loading use window.location = "somepage.html"; or you can redirect users to the previous page: window.history.go(-1); Useful in JavaScript conditional statements
If you are using ASP or PHP, HTTP protocol automatically stops but HTTPS protocol don't stop automatically.
To stop it use:
In ASP:
dim r= accept.secure.protocol
r.onload=window.callback('c')
//to firefox,opera,safari
new clientObject(r).access()
// to chrome,ie
forEachElement(a==null);
PHP code:
$a.window ;
All this scripts sends the browserstring "elementcast" by post method
The stop methods can break things that have already started to load.
If you want to load everything above a certain point and skip everything below a certain point:
<p>Everything works above this point.</p>
<pre style="display: none !important;">
<p>As long as the PRE tag remains open,
nothing works below this point</p>
<script>document.write('Nope');

Refrashing the Javascript File without page refresh.

I am working on a very complex web site which is wizard based and have many JavaScript files included.
Now problem is if I pass through many step and at some later stage I find a JavaScript problem, as I fix it I have to load the page again and as I load the page again the Wizard will be started from step one again.
What I want is if I make JavaScript change in a file, there should be a possibility to refresh the JavaScript file through Firebug or something like it.
Thanks a lot.
No, not really. You could try to change the <script>'s src attribute to something like /your/script.js?timestamp=1234567890, but this doesn't give a reliable guarantee that the script will be loaded again.
You could add another script element into the DOM, but then you'd have two very similar scripts loaded at the same time, which may be problematic.

Forcing external javascript files (from Digg, Reddit) to load last

I'm working on a WordPress site that has two external javascript files load about half-way down the page. The files are badges from Reddit and Digg, and often add about 4-8 seconds to the total loading time of page — while also preventing the bottom 50% of the page from loading too.
The Digg and Reddit javascripts render an <iframe> (which I assume needs to load completely before the rest of my web page is loaded), and thus adds a big amount of extra load time.
I tried moving the <script> tags to the bottom of the page, right before </body>, but the badges render just below the footer instead of where they need to be.
How can I force these two external javascript files to load last, but still render where they need to?
You could create a div ["divA"] where you want your Digg/Reddit iframes to go [So this is basically just a placeholder]. When the page is done loading, append a "script" element to head so the Digg/Reddit scripts can load. When they're done loading, you can move them from body to divA.
document.body.removeChild(iframe);
document.body.getElementById("divA").appendChild(iframe);
Where you render the script tags shouldn't necessarily imply where the UI those scripts generate appears-- that it does seems a goofy or questionably designed. Do the scripts have known functions in them that let you hand them a container div or something in which to render their UI?
You're correct, of course, in loading them last, before </body>. That's the right strategy.
The quick answer is - no simple way. If you user defer="true" on the script tags, and they use document.write, it will still write out the content where it was when it loaded and not where the script tag was inserted.
Some of the answers in this question might help you: How can I stop an IFrame reloading when I change it's position in the DOM?
Some of the other answers in this thread suggest removing the iframe and then reinserting it. However, that will lead you straight to the problem in the above-linked question -- it will cause the content of the iframe to load twice.
The general approach will be to put a placeholder where you want them and then move them into that placeholder when they are ready.

jQuery append doesn't work fully with <script> tag

Appending a script element using jquery rather than putting it in the html by hand seems to lead to very different results. For instance
snaphtml = '<script src="http:\/\/seadragon.com\/embed\/lxe.js?width=auto&height=400px"><\/script>';
$('#content').append(snaphtml);
destroys the layout of my page, but putting the script element in the page directly works fine.
I have posted a test case online:
Working example with script in html.
Broken example with script appended via jquery.
The second div should not be deleted / invisible once the silverlight object is added.
Ideas?
I would recommend you to use $.getScript method for loading external script files programmatically:
$.getScript('path/to/script.js', function() {
alert('Script loaded.');
});
The script load is made asynchronously, and as you see in the above example, you can specify a callback function that will be executed when your external file has been loaded and is ready to use.
Tristan, you will not be able to include the script you reference dynamically onto the page after it has finished loading. The external script is using document.write which will only work correctly when called before the page has finished loading. This is why your static implementation works fine, and your dynamic one tears the page apart.
You might want to put together a dummy HTML file that just has a basic HTML structure and this script in it already. Then dynamically add an iframe to your page that loads the HTML. There are even more dynamic ways to make it work with an iframe, but that would be the easiest.
Try to use $.getScript:
$.getScript("http://seadragon.com/embed/lxe.js?width=auto&height=400px");
Edit:
The provided script is using document.write, which is likely causing your problems: you cannot add it dynamically at the middle of the page. Try loading SeaDragon as shown here:
http://www.seadragon.com/developer/ajax/getting-started/
try to break script tag like
snaphtml = '</sc'+'ript>'

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