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Sqreen Blog

The Official Sqreen Blog

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JavaScript

7 posts
ESLint backdoor
  • JavaScript
  • Security
  • 17 views
  • 2 minute read
  • No comments

ESLint backdoor: revoke all the tokens

  • Vladimir
  • July 12, 2018
Tl;dr [EDIT 2018-07-16] The official ESLint post-mortem has been released. NPM already revoked all tokens at once so you probably don’t need to do this yourself. A backdoor was introduced…
View Post
Scaling CSS
  • Dev
  • JavaScript
  • 19 views
  • 6 minute read
  • No comments

CSS best practices for fast-growing SaaS startups

  • FX
  • February 2, 2018
I joined Sqreen in June 2016 as a web developer after working as a freelancer and in web development agencies. Since then, I’m in charge of the Sqreen Dashboard integration.…
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Authentication in Vue.js
  • Dev
  • JavaScript
  • Security
  • 477 views
  • 5 minute read
  • 86 comments

Authentication best practices for Vue

  • Thibaud
  • January 18, 2018
Introduction Whenever you start to get serious with a project, you will most likely face the issue of how to handle client-side token-based authentication. You will have to answer these…
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  • Dev
  • JavaScript
  • 83 views
  • 6 minute read
  • 15 comments

Monitoring the performance of a Node.js web application

  • Vladimir
  • November 21, 2017
Tl;dr Building a tool to monitor how an application performs is not very difficult anymore. Two recent additions to Node.js, the Async Hooks API and the Performance Hooks API, allow…
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How to build, test and deploy React Applications in 2017
  • Dev
  • DevOps
  • JavaScript
  • 65 views
  • 6 minute read
  • No comments

How to build, test and deploy React Applications

  • Mohamed
  • February 2, 2017
Unless you are living in a cave, continuous integration (CI) is all the rage, but it’s not just a practice exclusive to backend guys; front-end developers have no excuse not…
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Malicious Code Injections in Node.js
  • JavaScript
  • Node.js
  • Security
  • 93 views
  • 5 minute read
  • 9 comments

One easy way to inject malicious code in any Node.js application

  • Vladimir
  • August 22, 2016
tl;dr This article describes a method of injecting arbitrary code in Node.js modules. It does not encourage unethical behavior. The chain used to include instances of modules can be tampered to…
View Post
  • Dev
  • JavaScript
  • Python
  • 78 views
  • 3 minute read
  • 6 comments

Embedding JavaScript into Python

  • Jb
  • August 2, 2016
  TL; DR: v8.py PyMiniRacer brings a compiled V8 interpreter and a simple interface to the Python community: Our needs Sqreen needs a stable, performant and embeddable JavaScript solution for Python.…
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