Uncaught Error: SECURITY_ERR: DOM Exception 18

[adius]

I'm really confused right now. I'm hosting a website with github-pages and I used to work on the website locally (Apache, URL: localhost/~user/dir/ )
And now I wanted to update it but it didn't render the MathJax anymore and threw this error which doesn't help me at all. On github-pages however the exactly same commit works without any problems.
Has anybody an idea how this could happen?

[adius]

Seems to occur only in Chrome! Firefox and Safari work as expected.

[pkra]

Which version of Chrome? (and which OS while you're at it ;) )

[adius]

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/537.17 (KHTML, like Gecko) Chrome/24.0.1312.52 Safari/537.17

[pkra]

Thanks. Do you have a minimal example by any chance?

[adius]

http://adriansieber.com/mathematik_1/

Well, that's not really minimal but it has a pretty simple structure.
For me it looks like MathJax doesn't work on localhost at all right now.

[pkra]

Thanks. We'll look into it.

(PS: Sehr nette Uebungsaufgaben. Hast Du mal versucht, jsxgraph oder xyjax fuer die Diagramme zu benutzen?)

[adius]

😄 Ich hab stundenlang nach einem Programm für die Diagramme gesucht, aber irgendwie nichts sinnvolles gefunden. D3.js mit force-directed layout schien mir dann doch ein bisschen ein overkill zu sein :-P
Am liebsten waere mir etwas mit der funktionalitaet von graphviz.
Das Xy-jax sah aber auf jeden fall schon mal interessant aus! Das muss ich mir mal noch genauer anschauen.
Danke!

[pkra]

:) Na ja, waere natuerlich sehr huebsch. Es braeuchte endlich mal gute macros um bekannte LaTeX packete in d3.js oder three.js code konvertieren...

[gaurav-sanghani]

Hey, I've gotten this issue as well, although in different context. The issue crops up in Chrome when the user has disabled 3rd party cookies. Here's the jsfiddle - http://jsfiddle.net/fVNJE/.

Here's the line of code that throws the error.
if (window.chrome && typeof (window.sessionStorage) !== "undefined" && h.nodeName === "STYLE") {
Seems to be occurring at line 676 once the minified MathJax.js file, v2.1, is expanded in Chrome.

[fred-wang]

UndschuldogudDeutschvorstarichnicht...

I have been able to reproduce the issue as gaurav-sanghani indicates and find the same location. However, then the error happens everywhere, not only local website.

@adius just to see if that's the same error, can you please check what options are set for you in

chrome://settings/content

and also expand the error message in the javascript console (try "http://cdn.mathjax.org/mathjax/latest/unpacked/MathJax.js?config=TeX-MML-AM_HTMLorMML to get a relevant line number).

[pkra]

@adius could you help us track this down?

[adius]

Sry, I'm really bussy right now. I'll try to find some time on the weekend!

[pkra]

No problem at all -- thanks for helping us! - sent via Hojoki

[adius]

Ok, problem solved! I blocked cookies for localhost. After turning it on it works just like expected! Thanks for help!

…but actually it should also work with blocked cookies, right? I won't close the issue.

[dpvc]

@adius, thanks for the update. Yes, you are right, it should still work even with cookies disabled. We need to add try {...} catch () {...} around the setting of the cookie. Thanks for leaving it open.

[dpvc]

The issue374 branch of my fork of MathJax includes code to trap the error and go on silently. (It would be possible to issue an error message, but I doubt it is worth it.)

[fred-wang]

OK, that sounds good to me.

=> Ready for release.

[dpvc]

OK, Merged.