For debug purposes, I run my page under strict XHTML while I develop it. But, right now, I realised, that such code will not work:
<!-- With header("Content-Type: application/xhtml+xml; charset=\"utf-8\"") -->
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
<!--blah blah blah-->
</head>
<body>
<form method="post" target="my_frame">
<button>Send the form!</button>
</form>
<iframe name="my_frame" src="about:blank"></iframe>
</body>
</html>
Try it here. And also try it with text/html content-type. I can, of course, disable the strict mode for the site, but here on SO my question is, how to get it to work a XHTML. (this means, how to make the 1. link work properly).
Fun fact: While testing the example, I noticed that <button> tag does not work in IE properly. Any ideas what's wrong? (that's side question of course)
For XHTML, use id rather than name as the attribute for the target on the iframe. For HTML/XHTML compatibility, use both a name and an id and make sure their values are the same.
However, take note that target is not a valid attribute on a form. So it won't validate, and its working is not guaranteed.
The IE one should have been another question, but IE needs type="submit" for buttons, even if that type is supposed to be the default.
Related
I have this next code, but I cant make the icon show nor the image on the iphone render. How could I fix this problem?
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head></head>
<body>
<div id="contruccion">
<img id="Construccion" width="801" height="601" name="Construccion" alt="propiedad de CharLi Guatemala" src="images/siteCon.png"></img>
</div>
</body>
</html>
Safari on iOS does not support the favicon.ico file. You should create a touch icon, as defined by Apple.
The easiest way to get the job done is to create a 152x152 picture named apple-touch-icon.png and placed at the root of your web site. The iOS devices will find it and use it in bookmarks and for link on homepage.
You can also use this favicon generator to create all iOS pictures and HTML declarations at once. Full disclosure: I am the author of this site.
When Facebook debugger scrapes http://www.daisyworld.co.za it says 'Can't Download: Could not retrieve data from URL.' When I click 'See exactly what our scraper sees for your URL', this is what I get:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html>
<head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head>
<body><p>ÿþ</p></body>
</html>
But what is actually there is:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<META HTTP-EQUIV="content-language" CONTENT="En">
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css">
None of the other pages in the domain where I implemented a like button have any problems, it works just fine & I basically used the same pieces of fb code, for all of them with just the different particulars for each page. I cannot figure out what the problem is except that it seems that the debugger is looking at a cached file but surely that isn't supposed to happen?
Maria-Helena
I just hit this issue as well and discovered that facebook's scraper was appearing as a inbound JSON request. Since that particular route was set up to handle both JSON and HTML responses, FB was getting a big gnarly JSON blob instead of the actual web page. Not sure if this solves your exact problem, but hopefully sparks some fresh ideas!
Try saving the file with a different encoding - going from unicode to UTF-8 did it for me.
The Facebook documentation on this is inconsistent and confusing.
I. Here: https://developers.facebook.com/docs/reference/plugins/like/
It says:
<html xmlns:fb="http://ogp.me/ns/fb#">
(if you fill in the form and click the get code button and then click the xfbml tag.)
II. On this page: https://developers.facebook.com/docs/technical-guides/opengraph/opengraph-tutorial/#plugins
It says:
xmlns:fb="https://www.facebook.com/2008/fbml"
Now the two urls above resolve to the same url: http://graph.facebook.com/schema/og/
III. But then we have: https://developers.facebook.com/docs/opengraphprotocol/
xmlns:og="http://ogp.me/ns#"
xmlns:fb="https://www.facebook.com/2008/fbml"
Now the first url here does not even resolve to a valid xml schema.
What is the proper xmlns:og to use to enable FBLike, Comment, and FB Connect?
I know that in the world of HTML 5 this is not important but for the case of older browsers, what should we do?
Thanks!
This is what I use at the moment and works perfectly
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:og="http://ogp.me/ns#"
xmlns:fb="https://www.facebook.com/2008/fbml">
This is what I am doing right now. Both namespaces point to the same schema document.
<html xmlns:og="http://ogp.me/ns/fb#" xmlns:fb="http://ogp.me/ns/fb#">
This is my first time posting a question on this site, but certainly not the first time finding answers in it.
I have used stackoverflow as a resource to fix several issues I've faced with my new blog, that is until last night, when I found this issue which I just can't fix.
When I try to share the home page of my blog, I don't get the proper image specified in the og:image tag... once I check my site via de FB debugger, it shows me this:
https://developers.facebook.com/tools/debug/og/object?q=ivanfuentes.com
Curiously enough, I do not find any issues when I check for a page, or a post:
https://developers.facebook.com/tools/debug/og/object?q=ivanfuentes.com%2Fvideos%2F
https://developers.facebook.com/tools/debug/og/object?q=http%3A%2F%2Fivanfuentes.com%2Fthe-popularity-contest%2F
So, I know it's an issue that is generated in the home page only, but during the last 18 hours, have been unable to find it.
I have OG meta tags specified dinamically via a wordpress plugin... currently, it's "Facebook AWD", but I've had several other Facebook sharing, all-in-one's, and OG plugins, which give me the same results in the debugger, which makes me think I messed up somewhere else. I have no embarrassment in admitting I'm quite a newbie, so it's highly likely I messed up while trying to modify some code... probably when I added a few lines to make the site IE compliant?
Hope I gave enough information, and someone gets to help me, as this is not only about the proper image being displayed on a Facebook link, but rather about me likely having a mess in my code, and that could (WILL) mean trouble once I make any mods/updates to my site in the future.
Thanks for the time!
Your html is a complete mess and that's why the debugger is complaining.
Visiting your page and looking at the code I can see this:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<div id="fb-root"></div>
<script>
...
</script>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" xmlns:og="http://ogp.me/ns#" xmlns:fb="https://www.facebook.com/2008/fbml">
<head profile="http://gmpg.org/xfn/11">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<div id="fb-root"></div>
<script>
...
</script>
<title>Ivan Fuentes Hagar</title>
Two problems there:
The sdk code is inserted twice
In both cases there's a div placement before the body
In the debugger result for this page when clicking the bottom link (Scraped URL: See exactly what our scraper sees for your URL) you can also see broken html but in another variation:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><body>
<div id="fb-root"></div>
<script>
...
</script><meta http-equiv="content-type" content="text/html; charset=utf-8">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<script>
...
</script><title>Ivan Fuentes Hagar</title>
There problems here:
The body definition is right after the html
There's no head definition
All of the tags which suppose to live inside the head are inside the body
The sdk script is loaded inserted twice
In both cases I found 3 occurrences of the <div id="fb-root"></div>.
As you can see you have some fixin' up to do with the html output of your wordpress.
I'm not sure why the outputs is different for the debugger, I thought that maybe due to the user agent string, but trying curl --user-agent "facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)" "http://ivanfuentes.com/" returns the exact results as with the browser.
I've recently started working on a facebook app and I am lost and confused trying to get any direct answer. Googling for answers don't seem to work too well with facebook as things are changing too fast and blogs rarely update it to reflect the new APIs.
I know Facebook will deprecate FBML and I am overjoyed by that.
So my question is, will the DOCTYPE facebook gave you to put on your site, being deprecated?
What does doing this even do?
Assuming you are talking about this:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:fb="http://www.facebook.com/2008/fbml">
(specifically the xmlns:fb="http://www.facebook.com/2008/fbml"). They are not deprecating that. You should continue to add xmlns:fb="http://www.facebook.com/2008/fbml" in your <html> tag. However, for modernity you should be using the HTML5 doctype, so your doctype and HTML tag should look like this:
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:fb="http://www.facebook.com/2008/fbml">
What the xmlns:fb part does is specifies the XML namespace for tags within the page which begin with the fb: prefix (such as <fb:name/>).