This may only affect Firefox on OSX Lion .
When embedding a custom font
@font-face {
font-family: "my-optima";
src: local('Optima'), url('/css/optima.woff') format('woff');
}
Try to vary name the local(‘font-name’) a bit and the problem will be solved.
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Recently my EC2 server was hacked and it was totally my fault. I enabled password authentication and I set the password way too simple. I took a look at the log and I found out there are indeed many free people who keep trying to log in using brute force method.
To secure my server, I decided to limit SSH access to my office and home IP addresses only. Here are the steps.
I hope this helps.
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In Xcode 3, this is an option to select whether the project uses core data features. If it’s checked, Xcode automatically generates the code to set up the environment. Most of the examples about core data is based on the codes generated by Xcode. However, this feature is taken out in Xcode 4.This post is a guide of how to add the code manually in Xcode 4. Based on that, here’s my version of a simplified routine (it’s only 7 lines without the comments) .
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Quite often, websites developed in Singapore need to be localized (translated) into other Asian languages. Here’s my experience of working on Asian fonts. This is more useful for Flash designer and developers. But since embedding fonts for HTML is becoming a norm, this may be helpful for HTML work, too.
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B.I.R.M.E (Batch Image Resizing Made Easy) finally gets an update and it’s a HTML5 web app now. I’ve finally achieved my goal, to make a software which does not need to be installed and runs in all operating systems. The resizing is done by Javascript so the user do not need to wait for uploading the file to the server and then download them later.
Well, it’s not perfect. BIRME uses drag and drop and File API. Recent versions of Chrome and Firefox support these functions well. Safari 6 and IE10 will be fine once they are released. I haven’t tried it out in Opera yet (to be honest, I’m not interested to find out).
This is the most useful thing I’ve ever made so far.
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I had a weird error when working with Core Data. The App crashes without giving anything information. After adding break points here and there for a few hours, I narrowed that the problem is caused by failure to retrieve the NSManagedObjectModel file. I re-created another project and re-created the xcdatamodeld file from scratch and everything works fine. I suddenly remember I edited the xcdatamodeld file with vim when entering the attributes. That must be the reason.
I’m not 100% sure what happened but here’s my guess. The data model file is versioned automatically in Xcode 4. If I edit the “content” file directly, the versioning is disturbed and the IOS won’t be able to locate the “mom” file properly inside the “momd” folder.
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A gene is a long sequence of string with 4 letters, A, T, C and G. The “encryption” was figured out long time ago. Every 3 bases code for one amino acid. But, what if we look at genes from a computer graphic programmer’s point of view?
I wrote a program in Processing to “decrypt” genes in my way. I read 12 bases and convert it to a RGB color. The images are the result of such interpretation. It’s a E.Coli genome (a bacteria easily found from our backside). It’s very similar to a random noise image. However, what caught my eyes are the darker bands close to the bottom of the image. Does it mean anything?
Further study will be carried out. I’ll verify whether the dark bands correspond to any biological features. Are those areas more packed with coding genes or non-coding genes?
Another thing I would like to do is to write a program to search for a better “decryption” look up table, to see if that will yield better results. Interestingly, these kind of programming method is normally call “genetic algorithm”.
Image generated based on E.Coli Genome
Image generated with random noise
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I’m very sick of this Flash session issue. I thought I had the perfect solution of passing the session id into Flash and fix the session by appending all the request, then the bomb drops to me. It doesn’t work in an iframe in IE. Apparently, IE doesn’t trust cookies set from an iframe so there goes the session. The solution is to add a header information in the backend code. Something like this for PHP.
header('P3P:CP="IDC DSP COR ADM DEVi TAIi PSA PSD IVAi IVDi CONi HIS OUR IND CNT"');
It’s not hard to find the code for other languages in Google.
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http://en.wikipedia.org/wiki/Suffix_tree
Here’s the speed test. The speed boost is not obvious for daily usage but it’s very significant when the word base get larger, or it’s searching against long sentences.
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Facebook parameters passed to applications’ iframe is changed from GET to POST. It’s unclear whether this will be permanent. If your Facebook application uses iframe and tries to check parameters view GET method, it’s very likely to be broken now.
Many iframe applications check ‘fb_sig_in_iframe’ to determine whether the user is accessing the app directly, not going through Facebook. Such applications will go into a looping re-directing.
To be safe, you can try to get the parameters via both GET and POST in case Facebook change it back to GET in the future.
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