RE: Re: Getting Error 503 on Facebook url linter.
Troy Hunt <[email protected]>
| Newsgroups | gmane.comp.web.blogger.api |
|---|---|
| Message-ID | <[email protected]> |
I don't think it's Facebook's issue; let me demonstrate: If I construct an HTTP GET request to http://www.troyhunt.com/2013/09/understanding-and-testing-for-view.html and pass a user agent string of User-Agent: facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php) it will return 503 with a page title of "Service Unavailable". If I change a single character in the UA string it returns an HTTP 200 Success. Blogger is responding differently based on the user agent and for some reason when it thinks that Facebook is making the request it raises an internal exception. These requests were issued from my own machine so I think we can take Facebook out of the equation altogether, it's just that UA string causing problems. Regards, Troy Hunt 0438 040876 http://troyhunt.com @troyhunt Microsoft MVP - Developer Security From: [email protected] [mailto:[email protected]] On Behalf Of DarkUFO Sent: Tuesday, 17 September 2013 22:12 To: [email protected] Subject: Re: [bloggerDev] Re: Getting Error 503 on Facebook url linter. Troy, Yes, your DNS is now correct. Personally I would contact Facebook. Your URL http://www.troyhunt.com/2013/09/the-complete-guide-to-loading-free-ssl.html is working fine, I've run your site against various DNS and Network checkers and it is fine. I suspect something is up with the FB linter. Be interesting to see what they say. The only thing I noticed different with your site with custom domain and my site with custom domain is the DOCtype/HTML Here is mine <!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:b='http://www.google.com/2005/gml/b' xmlns:data='http://www.google.com/2005/gml/data' xmlns:expr='http://www.google.com/2005/gml/expr' xmlns:fb='http://www.facebook.com/2008/fbml' xmlns:og='http://ogp.me/ns#'> here is yours <!DOCTYPE html> <html b:version='2' class='v2' dir='ltr' xmlns='http://www.w3.org/1999/xhtml' xmlns:b='http://www.google.com/2005/gml/b' xmlns:data='http://www.google.com/2005/gml/data' xmlns:expr='http://www.google.com/2005/gml/expr'> On Monday, September 16, 2013 10:38:06 AM UTC+1, Troy Hunt wrote: Interesting, my DNS settings were per Blogger's recommendation at some point but obviously they're a little different now. Anyway, I've changed them a few days ago and things *seemed* to improve (object debugger no longer returning 503), but checking it again now and it's the same old problem: https://developers.facebook.com/tools/debug/og/object?q=http%3A%2F%2Fwww.tro yhunt.com%2F2013%2F09%2Fthe-complete-guide-to-loading-free-ssl.html Thinking about it, I'd be surprised if the erratic nature of it was due to DNS. Even before the changes, every now and then it would be ok then out of nowhere it would start misbehaving without touching zone records for the domain. Incidentally, I can force a 503 by manually constructing the request with the Facebook scraper user agent and issuing it via curl or Fiddler. It'll fail, but make a single char change to the UA and suddenly it's ok - this looks like Blogger messing with the request based on the client it believes is issuing it. Any further ideas? On Wednesday, September 11, 2013 10:31:24 PM UTC+10, DarkUFO wrote: Troy, your problem is that your DNS is not setup correctly. You are missing the standard 4 ANAME records for your domain. See this for more info http://www.tech.spoilertv.com/2012/05/getting-blogger-working-with-custom.ht ml -- You received this message because you are subscribed to a topic in the Google Groups "Blogger Developer Group" group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/bloggerdev/9rVo0mny7Do/unsubscribe. To unsubscribe from this group and all its topics, send an email to [email protected] <mailto:[email protected]> . To post to this group, send email to [email protected] <mailto:[email protected]> . Visit this group at http://groups.google.com/group/bloggerdev. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups "Blogger Developer Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/bloggerdev. For more options, visit https://groups.google.com/groups/opt_out.