Muffin Research Labs

Downgrading the Unifi Network App on a Cloudkey Gen2 Plus

Due to a bug [https://community.ui.com/releases/UniFi-Network-Application-7-0-20/3e4a4099-c063-42f6-8e21-5fb2c99fcea9#comment/f246c840-3422-4d36-a028-0becfe53e5a7] , and despite my cloudkey being set to only update official (stable) releases, the network app was updated from 6.5.55 to 7.0.20 and subsequent RC builds. This issue was caused by: * Enabling automatic updates

unifi

Unifi Access Point (AP) disconnected

A Unifi Access Point in all its glory!This morning I woke up to alerts from the unifi cloudkey telling me one of my wifi access points was disconnected. This was odd as this Access Point (AP) had been up and running fine ever since it had been configured. I

unifi

Can't connect to Unifi Cloud Key on port 8443

A guide to fixing issues with the admin interface for a Unifi Cloudkey not being available on port 8443.

pisight

Building a PiSight

I'd always admired Apple's original iSight camera and whilst I didn't own one in their heyday, I remember thinking back then how nice they looked compared to other webcams built around the same time. It looks purposeful and professional. The iSight compared to a

svg

Vertically and horizontally responsive circle with text

Recently in building out a dashboard to show the number of github issues for a given search, I wanted to show a circle containing a count. When we think about responsiveness in web pages we mostly think about making things that respond to a horizonal constraint. However, for a dashboard,

Firefox

Using the latest version of Firefox in Travis CI

A quick tip. If you're running karma tests via Firefox on Travis CI [https://travis-ci.org/] by default the Firefox version used is quite old (31 at time of writing). To always use the latest (current) version you can add this snippet to your .travis.yml. addons: firefox:

ReStructuredText

Including parts of README.rst in your sphinx docs

This will probably be of use to about 3 people, and I'm one of them. If you feel your eyes glazing over, don't fret and look at this kitten picture instead: The problem I wanted to add some content to both our docs (built via sphinx

ES6

Removing leading whitespace in ES6 template strings

Note: this post remains for posterity but rather than using the template tags described here I'd suggest taking a look at common-tags. In some recent code at work we're using fairly large strings for error descriptions. JavaScript has always made it hard to deal with long

OSX

OSX: Inkscape not working with multiple monitors

I recently noticed that under OSX Inkscape behaves strangely with multiple monitors. I thought I'd broken the installation as when launching Inkscape it opened and then the window immediately disappears. Fortunately there's a bug that's been filed here: XQuartz on OS X 10.9

Python

Python: testing beyond exceptions

Recently working on some code I was doing some basic tests that checked for an exception being raised. The tests looked like this: def test_user_identification_is_valid_option(self): with self.assertRaises(ValueError): example_seller(products=[ 'id': 'hai', 'description': 'a description&

mozilla

Back to the future: ES6 + React

I've just recently finished shaving about a billion yaks * to convert a React app over to use ES6 modules and classes so we can start living in the future that is ES6 with a sprinkling of ES7. * Might not be true Transpiling back to the present We'

mozilla

Running tests on Sauce Labs via Travis

For the Payments Team's front-end projects we've just landed support for running the front-end unit tests using Sauce Labs [https://saucelabs.com/]. About Sauce Labs In case you've never heard of Sauce Labs (unlikely!) they provide access to a multitude of browser/platform combinations

github

SVG credit-card provider icons

Recently I've been working on a UI for credit-card payments [https://github.com/mozilla/payments-ui]. As part of this we needed some credit-card icons to show the card type as the user types in the number to the input field. In looking for existing iconography I either couldn&

docker

Tips for building a dev-env with docker

Using docker [https://www.docker.com/] and docker-compose [https://docs.docker.com/compose/] to run a development environment can be a good way to have all your services connected and running together. I'm going to assume you've got a basic understanding of docker and how it

Apple

OSX: Remove scrollbars that appear when using a mouse

I've just switched to using a mouse instead of a trackpad on the mac as I get pain in an old broken finger from using the trackpad especially if I've been using the laptop's trackpad directly. What was odd was the second I switched

mozilla

JS: Creating instances without new

During a code review recently I was looking at some code that was using the new keyword to create an instance e.g: var inst = new MyConstructor(); The context object when new isn't used The code contained a safeguard to bail if the new keyword wasn't

mozilla

Taming SlimerJS

We've been using CasperJS [http://casperjs.readthedocs.org/en/latest/] for E2E testing on Marketplace projects for quite some time. Run alongside unittests, E2E testing allows us to provide coverage for specific UI details and to make sure that users flows operate as expected. It also can be

mozilla

Tips for getting the most out of irc

Having been remoting for the best part of 5 years I've come to use irc [http://en.wikipedia.org/wiki/Internet_Relay_Chat] alot as a primary means of communication for work. Along the way I've learnt a few things that made a difference to how

mozilla

Firefox sees Charles Proxy CA certificate as expired

Update: This is no longer relevant the issue has been fixed with a Charles update. Using current versions of Firefox with Charles Proxy [http://www.charlesproxy.com/] you might run into a problem where Firefox see Charles' own CA certificate as expired when you try to install it. After

mozilla

Proxying SSL connections using Firefox Android

Having dealt with enabling Proxying on FFOS devices [https://muffinresearch.co.uk/proxying-connections-from-ffos/] I recently needed to proxy code for Firefox for Android too. I'd recommend reading that post for all the background info. Fortunately the process for adding the CA cert your proxy uses to the certs

docker

Docker and dependencies

Last week I posed this question on Twitter: > Docker experts. How do you deal with non-os deps e.g. pip/npm/bower and avoiding cache-busting the dep install layer on dep changes? #docker [https://twitter.com/hashtag/docker?src=hash] — Stuart Colville (@muffinresearch) January 30, 2015 [https://twitter.com/

RPC:S-7:AEC-0 error buying apps with custom domain google account

I was trying to buy an app for my daughter's android device and when you got to the purchase page I was getting an error: > Error while retrieving information from the server RPC:S-7:AEC-0 Not a particularly useful error. As this was a google account with

firefoxos

Proxying connections from FFOS with Charles

After my post on Live debugging with Charles [https://muffinresearch.co.uk/using-charles-proxy-to-debug-live-code/], Nick Desaulniers [http://nickdesaulniers.github.io/] asked if I knew if it was possible to proxy device traffic via Charles. I didn't, but I did know that if it was possible it was sure to

mozilla

Firefox: Fixing "sync encountered an error…" on OSX

I was trying to get sync up and running between multiple FF versions I kept getting a message saying: sync encountered an error while syncing: Unknown error. Sync has logs in about:sync-log I was seeing this: Crypto check failed: [Exception... "PK11_GenrateRandom failed" nsresult: "0x80004005 (NS_

mozilla

Using Charles proxy to debug live code

We had an interesting bug today on our Marketplace development server where the new Firefox Accounts (FxA) integration we're working on didn't work correctly under FFOS 1.1. After hooking up a phone with a 1.1 build I could reproduce the problem. But, due to