How do I make the html go back to previous page?
I do not want to do it via a button, just that when this html gets loaded, it should automatically go back to previous page.
<!DOCTYPE html>
<html>
<head>
<meta http-equiv='refresh' content='0; URL='>
</head>
</html>
You have two options. JavaScript or HTML Meta Tags.
A JavaScript example would be
window.addEventListener('DOMContentLoaded', function() {
history.go(-1);
});
Or using HTML Meta Tags like this:
<meta http-equiv="refresh" content="2;url=http://example.net">
Hope it helps! Be aware that this behaviour is, generally, not expected by the user, and could cause confusion
You may wanna use the history.back() method that looks up at your history and send you back to the last visited website.
Related
My code says
example.com
But when it comes to the browser, it looks like the following and the link is not working.
<a href="http: www.example.com"="">example.com</a href="http:>
Do you have any idea why this is happening?
Looks like you copied or accidentally added a blank space in the html. Simply set your cursor in front of the a and hit backspace till you hit the < ;-) Rinse and repeat for the closing bracket.
Make sure to specify a doctype and a charset on your HTML file. Also remember to save your file as ".html" or ".htm".
Here is a small example of a basic HTML structure.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Your document title</title>
</head>
<body>
Your code goes here.
example.com
</body>
</html>
When I have a simple HTML markup like this:
<!DOCTYPE html>
<html>
<head>
<title>lawl</title>
</head>
<body>
</body>
</html>
When viewing the elements of the document, in the Chrome Deceloper Tool(F12) it looks likes this:
<!DOCTYPE html>
<html>
<head>
<title>lawl</title>
<style type="text/css"></style> <-- what the?
</head>
<body>
</body>
</html>
So, my question goes: Where does the style tag come from? What added it, and why?
Hope you guys can clear this up for us, it's been quite the subject the last 10 minutes in class ;-). Also worth mentioning; a class got added to a empty div in another document when the teacher tried it.
Edited title.
Chrome plugins can get access to your DOM, and so does the development tools. In this particular case, I think the development tools is the one to blame.
The empty style tag is probably a placeholder for injected CSS.
If you open the source code (view-source:www.example.com), you will see that your DOM is perfectly fine.
99:1 that the <style> element is a stylesheet injected by your AdBlock (or similar) extension.
If I want to redirect to another page in my HTML file, do in have to place the meta tag in the head or can I place it at the top of the file before the DOCTYPE? Thank you.
You can't place a meta tag above the DOCTYPE. The DOCTYPE must always be the first element in an HTML document, and meta tags must only be placed in the head.
Documents must consist of the following parts, in the given order:
Optionally, a single "BOM" (U+FEFF) character.
Any number of comments and space characters.
A DOCTYPE.
Any number of comments and space characters.
The root element, in the form of an html element.
Any number of comments and space characters.
Source: http://www.w3.org/TR/html5/syntax.html#writing
For purposes of this question, the spec says that a document must start with a DOCTYPE and be followed by a root html element. While a meta tag might still work, there is no guarantee of it doing so today and continuing to do so in the future.
The meta tag has to be inside the <head></head> section. You can not add anything before <!DOCTYPE html>
Here is detailed description of DOCTYPE
W3C deprecates the use it, but they do offer an example on W3C:
<HEAD>
<TITLE>Don't use this!</TITLE>
<META http-equiv="refresh" content="5;http://www.example.com/newpage">
</HEAD>
<BODY>
<P>If your browser supports Refresh, you'll be transported to our
new site
in 5 seconds, otherwise, select the link manually.
</BODY>
GIYF: H76: Using meta refresh to create an instant client-side redirect
You should insert the following line in the head section of your HTML page, replacing http:example.com/ with the actual web page to which you want to redirect your viewers:
< meta http-equiv="refresh" content="2;url=http://example.com/" />
Here is an example with the correct line inserted in a typical HTML page. Note that it comes above the title tag.
<html>
<head>
<meta http-equiv="refresh" content="2;url=http://example.com" />
<title>Page Moved</title>
</head>
<body>
This page has moved. Click here to go to the new page.
</body>
</html>
I was hoping that someone may know how to resolve this HTML5 validation error. When I try to validate my page: http://blog.genesispetaluma.com using http://validator.w3.org, it gives me the following error code:
Error Line 90, Column 63: An body start tag seen but an element of the same type was already open.
<body class="home blog single-author two-column right-sidebar">
I interpreted this error to mean that I have two body tags in the code. However, I have searched everywhere and can only find one <body> (the one referenced by the error) and one </body>. Can anyone please tell me how to resolve this error?
I had a similar problem but with <head>, giving the following W3C markup error:
A head start tag seen but an element of the same type was already open
I had this code:
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<head>
When it was supposed to be:
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
I knew that was wrong but it's hard to spot sometimes, as you're just so used to the header code being correct 99% of the time. I obviously cut n pasted some code and that ended up in the wrong place.
This isn't specific to your question, I know, as your error relates to the <body> tag, but this is the kind of thing you're looking for. Maybe you have a <link> or <meta> tag in your body somewhere, that's meant to be in the <head>. Without seeing your code, it's hard to give you a perfect answer.
Possibly it's because:
<div id="wrapFix">
<div id="drawLogo1">
<div id="drawLogo2">
<img src="http://genesispetaluma.com/img/logoNew.png" alt="Genesis Fitness G stylelogo">
</div>
</div> <!-- end of drawLogo1 -->
Is between your closing head tag and opening body tag. I.e. lines 81-87
One of the widgets (the facebook like button I believe) you're using is inserting HTML into the page and part of that HTML is a body tag. Not sure if there's anything you can do about this, but I think that's what's throwing the error. Looks like this:
<body class="plugin transparent_widget ff4 win Locale_en_US">
</html>
</iframe>
I got this error:
A head start tag seen but an element of the same type was already open
I read this post and then i noticed my tag listed before the head like this.
<title>Home</title>
<head>
</head>
it should have been
<head>
<title>Home</title>
</head>
It happens in below said scenarios as per my knowledge -
When you mistakenly choose <head> thinking <header> tag.
When your <header>, <nav>, <section> or <footer> tag(s) are outside of <body> tag.
So, after creating your page, you can validate these changes here.
I got the same error message : check out if any body-inside <element> is displayed between the <head> and <body>, like said above.
My error was caused by a <div> tag, with absolute position, to display some page information during the development - simply a line on a false position in the code.
Hi in my case hgroup tag is the reason why I'm having validation error I, remove this tag from head tag and put it inside after body tag after this the document is now valid.
Just for the record, I had exactly the same problem and it seems that including some php files within the head element was strangely giving the problem, even if the view-source of Firefox was not printing such php code nor tags
<head>
<? include("./file.php"); ?>
<title><? echo $title ?></title>
</head>
solved using:
<? include("./file.php"); ?>
<!DOCTYPE html>
<html>
<head>
<title><? echo $title ?></title>
</head>
<body>
...
...
If Your problem With head and body both are show validate error just remove displaying text from head and keep it in body..
I have been faces the problem recently.
For Example You have text to display in header inside head just remove header from head and keep it in body ......Problem solved...Thanks
In my case it was the facebook tag
<div id="fb-root"></div>
which was inside the page's <head>.
Moved that to the <body> of the relevant page (not required globally) sorted it. So yes, the answer supplied above by Emil H was correct.
Also bear in mind, if you copy/paste your code from things like slack, etc. they will have 'special characters' for formatting (that are usually invisible) which may cause that issue.
Here is a video to demonstrate: https://drive.google.com/file/d/1OJS15zmSvzhVXVLcQGGhePZGNCxWHocN/view
This error can happen if you put into <head> tag that restricted to be there. For example:
<head>
<audio preload="auto" class="menu-beep" id="sound-01">
<source src="sound-01.mp3">
</audio>
</head>
In this case, the tag will be immediately opened in the browser memory. But later the browser will find the body tag that opens the page. This is how it turns out that there is a second body tag.
I had similar problem with <head> tag. I use https://validator.w3.org
Look at few examples how to solve this problem:
<script> should be inside <head>
css should be inside <head>
Firstly, I've done some Google'ing and found the IE 'conditional comment' and understand it's non-standard. I also get the impression there is no standard HTML 'IF' so my question is about what I need to do to achieve the same effect (Javascript perhaps?)...
I'd like to conditionally include an external .html file (from a selection of external .html files). Specifically, the external files each contains nothing but a <meta> element on a single line. Alternatively is it possible to have multiple inline <meta> elements in a HTML file and to 'choose' one conditionally (effectively ignoring the others)?
Basically, can I do something that would achieve the same as one of either of these pseudo code examples?
Example using pseudo code for external files...
<html>
<head>
if some-condition
<!--#include file="meta1.html" -->
else
<!--#include file="meta2.html" -->
...
</head>
...
</html>
Alternative example (again pseudo code) for selecting alternative elements directly...
<html>
<head>
if some-condition
<meta name="viewport" content="abc" />
else
<meta name="viewport" content="def" />
...
</head>
...
</html>
NOTE: In all cases the <meta name attribute will always be viewport - it's just the content attribute which needs changing perhaps with some other attributes.
EDIT: The main condition would be the type of client. One example is that to help correctly size web app pages on an Android device you can use certain content data for the viewport that only Android devices understand. For conventional browsers, I would set a default set of data for content (for width/height for example). This could also be expanded for other clients such as Google TV, iOS etc etc.
Using Javascript:
document.head.insertAdjacentHTML( 'beforeEnd', '<meta name="viewport" content="abc" />' );
Demo: http://jsfiddle.net/ThinkingStiff/ccX5p/
You could do this with javascript / jQuery quite easily.
Set your conditions and then append() to the head.
Example:
if(//condition here){
$('head').append('<meta name="viewport" content="abc" />')
}
else{
$('head').append('<meta name="viewport" content="def" />')
}
if you are using a server side, like asp or java, the thing becomes lot easier for you.
i shall consider you are not using server side coding.
use javascript for getting the browser name (navigator.appname I guess).
then you may use DOM to add <meta ..../> tags inside <head> element.
document.getElementsByTagNam('Head').appendChild(metaChild);