By @edent · HTML javascript security ui ux · 10 comments · 400 words · read ~5,111 times.
This has to be the most infuriating bug report I've ever submitted. I went to type in my 2FA code on a website - but no numbers appeared on screen. Obviously, I was an idiot and had forgotten to press the NumLock button. D'oh! I toggled it on and typed again. No numbers appeared. I […]
Continue reading →By @edent · bug chrome css firefox HTML5 javascript · 1 comment · 350 words · read ~690 times.
Whenever I open Twitter in a new tab on my phone, the page layout looks weird for a few seconds. It starts out looking like the desktop view and then, after a few seconds, it snaps back to the mobile view. What's causing this? Try opening this link to a window size detector in a […]
Continue reading →By @edent · css javascript · 10 comments · 700 words · read ~31,156 times.
I'm a weirdo - I fully admit that. As part of my home working set up, I use a vertical monitor. I read and write a lot of long documents - and this form factor suits me perfectly. I've been doing this for a long time. It is a natural part of my workflow. For […]
Continue reading →By @edent · HTML javascript · 36 comments · 550 words · read ~45,808 times.
I want to discuss a (minor) antipattern that I think is (slightly) harmful. Lots of websites use large Javascript libraries. They often include them by using a 3rd party Content Delivery Network like so: <script src="https://cdn.example.com/js/library-v1.2.3.js"></script> There are, supposedly, a couple of advantages to doing things this way. Users may already have the JS library […]
Continue reading →By @edent · hack javascript NaBloPoMo Responsible Disclosure security sri · 12 comments · 750 words · read ~33,583 times.
A few months ago, British Airways' customers had their credit card details stolen. How was this possible? The best guess goes something like this: BA had 3rd party JS on its payment page <script src="https://example.com/whatever.js"></script> The 3rd party's site was hacked, and the JS was changed. BA's customers ran the script, which then harvested their […]
Continue reading →By @edent · code github hack javascript NaBloPoMo · 200 words · read ~3,951 times.
Scratching my own itch here... GitHub users have a username (mine is @edent) and have a user ID number (mine is #837136). If you want to redirect a user ID to a username, you can use the little service I've cobbled together: https://edent.github.io/github_id/#837136 That will take your browser to my GitHub page, using nothing but […]
Continue reading →By @edent · graphics javascript svg · 20 comments · 450 words · read ~51,936 times.
For my contact page, I wanted a generic calendar icon to let people view my diary. Calendar icons are almost always a skeuomorph of a paper calendar, but I wondered if I could make it slightly more useful by creating a dynamic icon. Here it is, an SVG calendar which always display's today's date: The […]
Continue reading →By @edent · google HTML5 javascript · 350 words
I've started using Google Cloud Vision for running text detection on OpenBenches images. There's just one problem - Google limits the size of the files that it will accept to 4MB. Why? Who knows! Obviously, it's easy to shrink an image server-side, but how do we do it in the browser? First, let's take a […]
Continue reading →By @edent · javascript NaBloPoMo Web Development · 4 comments · 650 words · read ~2,409 times.
I'd like to propose that web designers around the world spend one day this year browsing the web with JavaScript disabled. I'm tentatively calling this "International No Javascript UseR Experience Day" or INJURED for short. A few weeks ago, a reader of my blog complained that all they saw was a blank screen. As Liz […]
Continue reading →By @edent · android javascript mobile programming · 3 comments · 1,500 words · read ~579 times.
How much checking do we perform that our code is running as intended? I found a curious bug this weekend, which made me think about some of the assumptions that we use when programming. Imagine sorting an array using JavaScript. var arr = [10, 5, 66, 8, 1, 3]; arr.sort(); So far, so normal. Create […]
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