<fb:like> tag is stripped

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Posts: 1
Joined: Wed Apr 02, 2014 12:48 am

<fb:like> tag is stripped

Postby SebastianNordhoff » Wed May 07, 2014 6:39 am

I want to add a <fb:like> tag to the footer of my OMP 1.1. installation. I do this by going to management/settings/website, and clicking the HTML button in the "Press Page Footer" area. I then paste the HTML I want (If there is an easier way to get my HTML in there, I would be happy as well). Upon saving, the <fb:like> tags disappear.

I have edited my config.inc.php to include
allowed_html = "fb:like,a[href|target],em,strong,cite,code,ul,ol,li,dl,dt,dd,b,i,u,img[src|alt],sup,sub,br,p,h1,h2,h3,div[class],span[class]"

However, my php5error.log tells me: "Message: USER WARNING: Element 'fb:like' is not supported (for information on implementing this, see the support forums) "

I had a look at
but the solutions proposed there do note seem to apply to OMP 1.1., as the files mentioned do not exist on my system.

I will be the only person editing HTML on that particular installation. Is there another way of storing the HTML I want in OMP as a workaround?

Posts: 10015
Joined: Wed Aug 10, 2005 12:56 pm

Re: <fb:like> tag is stripped

Postby asmecher » Wed May 07, 2014 7:22 am

Hi Sebastian,

That message is coming from the HTML Purifier, as "fb:like" is not a valid tag in the HTML version we use. However, you can tweak HTML Purifier, including adding elements, according to this document. HTML Purifier is integrated in lib/pkp/classes/core/String.inc.php in the stripUnsafeHtml function.

Alec Smecher
Public Knowledge Project Team

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