Feeds

Opera betas open source web debugger

Dragonfly. It eats bugs

Combat fraud and increase customer satisfaction

Opera has released the first official beta version of Dragonfly, its open source debug tool for web developers.

Similar to Mozilla's Firebug tool, Dragonfly debugs JavaScript, CSS, DOM, and HTML code, and it supports newer web technologies such as SVG and various HTML5 APIs. The tool includes a network inspector that lets you see what resources an application loads in what order and look, and there's a storage inspector that lets you update and test cookies and the HTML5 web storage API.

It can also remotely connect to non-PC devices running version Opera's Presto rendering engine. So you can, for instance, use your desktop browser to debug a site running on Opera Mobile.

Dragonfly is the Norwegian browser maker's first open source project. The code has been open since the project's inception in 2008, carrying a BSD license, and last May, after moving from Opera's server to BitBucket, it switched to an Apache license in order to provide added patent protection to users.

The tool only works with the Opera browser. When you download the browser, the debug tool loads automatically from the web. It speaks to the browser via Opera's Scope protocol, which has also been open sourced under an Apache 2.0 license.

It's called Dragonfly because, yes, it eats bugs. "That is exactly what we want it to do for developers around the world," reads a canned statement from David Storey Opera's Chief Web Opener. "You spend your time making the web better for everyone. The least we can do is make life easier for you.”

To enable Dragonfly in Opera, enter "opera:config#DeveloperTools|DeveloperToolsURL" into your the browser's address bar, change “DeveloperToolsURL” to https://dragonfly.opera.com/app/cutting-edge, and click "save". You can then open Dragonfly via a Ctrl+Shift+I shortcut on Windows and Linux or ⌘+⌥+I on Macs. ®

Combat fraud and increase customer satisfaction

More from The Register

next story
This time it's 'Personal': new Office 365 sub covers just two devices
Redmond also brings Office into Google's back yard
Oh no, Joe: WinPhone users already griping over 8.1 mega-update
Hang on. Which bit of Developer Preview don't you understand?
Microsoft lobs pre-release Windows Phone 8.1 at devs who dare
App makers can load it before anyone else, but if they do they're stuck with it
Half of Twitter's 'active users' are SILENT STALKERS
Nearly 50% have NEVER tweeted a word
Internet-of-stuff startup dumps NoSQL for ... SQL?
NoSQL taste great at first but lacks proper nutrients, says startup cloud whiz
Ditch the sync, paddle in the Streem: Upstart offers syncless sharing
Upload, delete and carry on sharing afterwards?
New Facebook phone app allows you to stalk your mates
Nearby Friends feature goes live in a few weeks
Microsoft TIER SMEAR changes app prices whether devs ask or not
Some go up, some go down, Redmond goes silent
Batten down the hatches, Ubuntu 14.04 LTS due in TWO DAYS
Admins dab straining server brows in advance of Trusty Tahr's long-term support landing
prev story

Whitepapers

SANS - Survey on application security programs
In this whitepaper learn about the state of application security programs and practices of 488 surveyed respondents, and discover how mature and effective these programs are.
Combat fraud and increase customer satisfaction
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Top three mobile application threats
Learn about three of the top mobile application security threats facing businesses today and recommendations on how to mitigate the risk.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.