We use the javascript SDK for login and sharing (iframes for the Like button). Javascript is loaded after the page load. We're seeing 1.5 to 3 second slower full page loads with Facebook enabled. What can we do to identify the cause and optimize perceived and real page load speed?
Make sure all JS includes are after CSS includes as for rending
Remote javascript loads are at the mercy of whoever is hosting them. Sometimes you can locally host them, but then you don't get the latest version, and some JS includes won't work if they're not included remotely.
Try putting the facebook include as the very last element in the tag. The actual facebook logic won't happen until the rest of the document loads however.
Related
I have implemented AMP successfully for my webpages and google started indexing it, which I came to know via WebMaster tool. I am facing some issues which is present and disappears in short span of time.
Issue logged are:
User authored JavaScript found on page
The pages doesn't contain any script tags except schema.
This error is showing for few pages from 120 pages instead of following same
template. Below is the image link:
Have some more query:
I have observe different amp urls getting redirected to its original page when the same amp url is being used in Web Browser.
Is Google taking care of it or its on us to do the redirection?
I am planning to implement the sign in and share buttons on my web pages which will be using javascript. But if I do so, I do get validation error. So what is the right approach.
Can anyone please help me on this?
Please ensure that all script tags are of type application/ld+json. There should be no executable code in these script tags.
Redirection is something that you must be doing on your end. Google doesn't do any sort of redirection from AMP to non-amp pages if the URL is hit directly. In fact that URL schema that Google uses in their carousel is entirely their own, and just includes the path to your page inside it. E.g. https://cdn.ampproject.org/v/www.yoursitehere.com/path/to/article.html
Social sharing using Javascript inserted in the page is not allowed, as no Javascript is allowed. If you want to use social sharing, use a non-javascript implemention, or try out the amp-social-share
thanks for the response. As per the query which I asked
Please ensure that all script tags are of type application/ld+json. There should be no executable code in these script tags - I am not using any Script as of now except amp only
Redirection is something that you must be doing on your end. Google doesn't do any sort of redirection from AMP to non-amp pages if the URL is hit directly. In fact that URL schema that Google uses in their carousel is entirely their own, and just includes the path to your page inside it. E.g. https://cdn.ampproject.org/v/www.yoursitehere.com/path/to/article.html -
Understood
Social sharing using Javascript inserted in the page is not allowed, as no Javascript is allowed. If you want to use social sharing, use a non-javascript implementation, or try out the amp-social-share - Implemented Social Share and its working fine
Can we implement AMP for eCommerce sites where a lot of JavaScript, forms, plugins can be included? As of my knowledge AMP wants to keep it simple and thus restrict as many JavaScript, form tag is not valid only. So is there any chance we can implement AMP on eCommerce sites.
I need to create a custom Facebook Page Tab app which will show an external site in an iframe. This need to have adverts on it but I'm not sure if this is possible as the site is hosted externally.
I'm not sure if I need to sign up to the Facebook Audience Network to get approved etc. either?
Any help or advice would be great.
Many browsers have this limitation of not allowing external sites to be shown in an iframe. Imagine the case when you are working hard to create a site and others show all your content in iframes. That is, naturally frustrating.
However, there is a candidate-solution: Let's suppose you create a page which sends a request to the other site and appends all the content into the body and head of your page. This is very much possible, so the solution is to:
Create a page in your site, let's call it outsider
In the server-side code of your outsider page send a request to the desired page to be shown
You will get the html of the page. Process it and include its content into the head and body of outsider. This includes:
3.1. Checking all the CSS to be reached, as the target page might refer to local CSS, which is unreachable locally at your end. Process the URLs of CSS files
3.2. Checking all the Javascript to be reached, as the target page might refer to local JS, which is unreachable locally at your end. Process the URLs of JS files
3.3. Apply the idea described in 3.1. and 3.2. for other resources, like images, until you are satisfied with the content of outsider
Create an iframe, having the source to point to outsider. outsider is inside your scope, so it should be shown
NOTE: If the site owning the target page does not like the possibility of you showing their content inside iframes, they might protect it by, let's say, having Javascript in their code, which checks whether the page is inside an iframe. Remove that code while processing the response to your request. If nothing else prevents you from showing the page in an iframe, then you should achieve success.
On what browsers or user agents that channel URL is actually used, and what for?
I have no intention of having my site to work on Internet Explorer <= 8 (it is an HTML5 <canvas> game, and I am serving everything else as "application/xhtml+xml").
So, if channel is only useful on that old crap, I can gladly get rid of it...
Related (possibly): Channel URL Facebook
Because the social plugin is cross domain call, it needs a way to communicate. The wrokaround is to include a hidden iframe in the page for that. But, with this workaround, that iframe is loaded every time when page loads and will double the traffic reported. This is why channel url was done. What it does, it load the fb js in that page, and from that moment on, the js is available on your domain.
It will improve your loading times (cache) and will fix the reporting issue (you will see in reports channel page reported separately). But is not necessary for any html5 capable browser.
So, if you are using only HTML5 capable browsers, you are safe to ignore that. I am not sure about ie9, I will try to test it with my app by removing channel url and let you know.
Edit: By removing the channel URL from my app, I start getting double traffic reports from IE9. I think that is a good idea to keep the file there, is is just a simple html file with a single line. Better to be safe than sorry.
I am working on Apache Nutch modification project. We already swapped Nutch's original module with ours built using HtmlUnit. I need to download whole Facebook user site (ex. http://www.facebook.com/profile.php?id=100002517096832), which is going to be parsed using our own parser. Unfortunately Facebook is using mechanism called BigPipe (http://www.facebook.com/note.php?note_id=389414033919). That's why most of current website is hidden in <.!-- --> tags.
Usually when we scroll down Facebook page, new content is being unpacked every time we are about to hit bottom of the page. I have tried to use Javascript that scroll my htmlPage (HtmlPage object from HtmlUnit project), but finally I realized that scrolling is not triggering loading new content on Facebook user site.
How can I check, what event on page triggers loading content on current Facebook page? Maybe I should approach problem from different side, for example try to extract BigPipe "things" on my own? Have you ever did that?
Before dealing to your question … what kind of project are you trying to build there?
Since Apache Nutch is an open source web-search software, I think you are trying to build some kind of search engine, that scrapes Facebook user profiles/feeds to get data and make it searchable on some third-party website?
Well, that would be a violoation of Facebook Platform Policies:
I. Features and Functionality
12. You must not include data obtained from us in any search engine or directory without our written permission.
So, do you have that written permission?
I am writing an app within a facebook iframe and am unsure how best to write this. I originally wrote all the code within the main canvas.php file but found everything was running too slow before results were being loaded into the iframe.
I then tried using the php header location method so to try and load different pages into the iframe, thus reducing page load time. However, the header location is ignored.
I have also tried using javascript to get the page to load within the iframe instead, this does load in the new page but the page experiences lots of problems. It wil not pass parrameteres to itself using $_GET.
Basically, I need to perform some checks when the canvas page is first loaded in the iframe and then re-direct to another file to avoid the checks being perfomed on every page load as this seriously shows everything down. I then need to have page reloads with different parrameteres in the URL to populate the iframe with different results, again this is very slow as it has to perfomr all the checks again.
Therefore, how can I achieve a smooth workflow as a normal site within a facebook iframe?
[EDIT] Just thought is Ajax a valid option?
Many thanks in advance.
Most people experience slow response times due to not having a channelURL specified. See http://developers.facebook.com/docs/reference/javascript/
Channel File
The channel file addresses some issues with cross domain communication
in certain browsers. The contents of the channel.html file can be just
a single line:
It is important for the channel file to be cached for as long as
possible. When serving this file, you must send valid Expires headers
with a long expiration period. This will ensure the channel file is
cached by the browser which is important for a smooth user experience.
Without proper caching, cross domain communication will become very
slow and users will suffer a severely degraded experience. A simple
way to do this in PHP is:
The channelUrl parameter is optional, but recommended. Providing a
channel file can help address three specific known issues. First,
pages that include code to communicate across frames may cause Social
Plugins to show up as blank without a channelUrl. Second, if no
channelUrl is provided and a page includes auto-playing audio or
video, the user may hear two streams of audio because the page has
been loaded a second time in the background for cross domain
communication. Third, a channel file will prevent inclusion of extra
hits in your server-side logs. If you do not specify a channelUrl, you
can remove page views containing fb_xd_bust or fb_xd_fragment
parameters from your logs to ensure proper counts.
The channelUrl must be a fully qualified URL matching the page on
which you include the SDK. In other words, the channel file domain
must include www if your site is served using www, and if you modify
document.domain on your page you must make the same document.domain
change in the channel.html file as well. The protocols must also
match. If your page is served over https, your channelUrl must also be
https. Remember to use the matching protocol for the script src as
well. The sample code above uses protocol-relative URLs which should
handle most https cases properly.