Javascript error in FF

Question

I am trying to execute a javascript and there is this error thrown:

Timestamp: 10/25/2012 2:23:13 PM
Error: SyntaxError: syntax error
Source File: http://www.facebook.com/dia.makoetskiy
Line: 1
Source Code:
<!DOCTYPE html>

It points to this line.. althought it is not line 1 in the document.

<script src="http://www.facebook.com/dia.makoetskiy" onload="logged()" onerror="notlogged()"></script>

Whats the problem with firefox?

Chrome says that I have a syntax error:

<!DOCTYPE html>

Why is it an error..? why the hole page crashes on firefox but it is okay on chrome/

I think the error of the first line is from facebook.. but how do I prevent this? it retrieves the document from that page, and that document ruins the javascript external link syntax

score 3 · Answer 1 · answered Oct 25 '12 at 12:43

3

http://www.facebook.com/dia.makoetskiy is an HTML document, not a JavaScript program.

<!DOCTYPE html> is line one of that resource, not the document containing the <script> element.

answered Oct 25 '12 at 12:43

Quentin

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true.. I noticed it now.. but how can prehaps suppress error throwing on firefox? chrome doesnt throw an error – Dmitry Makovetskiyd Oct 25 '12 at 12:45
@DmitryMakovetskiyd What is it exactly that you're trying to accomplish? – jonvuri Oct 25 '12 at 12:52
try to find out if the page retrieves error 404 or not and based on that trigger an error event – Dmitry Makovetskiyd Oct 25 '12 at 12:53
Maybe this will be useful: http://stackoverflow.com/questions/5992631/check-whether-url-returns-404 Note that it may not be possible due to cross domain scripting restrictions. – jonvuri Oct 25 '12 at 13:35
lol..but that is the whole point.. working around the cross domain issue.. is there a way to suppress the firefox error? – Dmitry Makovetskiyd Oct 25 '12 at 13:53

score 0 · Answer 2 · edited May 23 '17 at 11:55

0

Facebook does not return a 404 response for non existent pages like http://www.facebook.com/some-super-bogus-username

http://redbot.org/?uri=http%3A%2F%2Fwww.facebook.com%2Fsome-super-bogus-username

It simply reports back HTTP/1.1 302 Found

And besides doing such a check with javascript is not ideal. Easy way to test a URL for 404 in PHP?

edited May 23 '17 at 11:55

Community

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answered Oct 26 '12 at 17:21

Anthony Hatzopoulos

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Javascript error in FF

2 Answers2