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-   -   Lockup with regular expression URL blocking on certain sites (http://forums.omnigroup.com/showthread.php?t=14883)

bmastenbrook 2010-01-02 09:44 AM

Lockup with regular expression URL blocking on certain sites
 
It appears that having a regular expression starting with ".*" (and presumably other expressions that require backtracking?) causes a lockup when loading certain sites. The common denominator of these sites appears to be their use of TypeKit (a licensed CSS3 font-face solution).

Here's an example rule that causes problems for me:

.*fhqwhgads

Even if this is never matched on the page, I get a lockup. The following pattern, which is just as effective, causes no issues:

://.*fhqwhgads

I've adjusted my blocking rules to work around this issue.

whpalmer4 2010-01-02 01:16 PM

Don't you think this would be a more useful report if you also provided a specific example of such a site, rather than making whoever wants to look at it try to find what may or may not be a similar one in order to try to help you?

bmastenbrook 2010-01-03 05:51 AM

[QUOTE=whpalmer4;71183]Don't you think this would be a more useful report if you also provided a specific example of such a site, rather than making whoever wants to look at it try to find what may or may not be a similar one in order to try to help you?[/QUOTE]

Whoops! I had a short list of problem sites that I forgot to paste into the report. Thank you for pointing this out.

Here are a few sites I see the issue on:
[LIST][*][URL]http://www.typekit.com/[/URL][*][URL]http://blog.typekit.com/[/URL][*][URL]http://www.gigaom.com/[/URL][*][URL]http://www.hbr.org/[/URL][/LIST]

troyb 2010-01-05 05:15 PM

Sure does! I've filed this in our tracker, thanks for the report.

TimmyDee 2010-03-04 10:40 AM

In the meantime, thanks for the work around, bmastenbrook.


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