Roger 524c

Javascript Prototype Pollution

Javascript prototype specification

// Not only Object but also other types. (Function, Array, String, Number, ...)
Object.prototype.prop1 = 1;
Object.prototype.func1 = () => 'Hello!';                                        

const obj1 = {};

This Dockerfile is intended for SvelteKit applications that use adapter-node.

Dockerfile:

FROM node:16-alpine AS builder
WORKDIR /app
COPY package*.json .
RUN npm ci
COPY . .
RUN npm run build

Deploy K3s and Rancher on Raspberry Pi 4 cluster

Today I tried to setup a small Kubernetes cluster on top of 3 Raspberry Pi 4 (4GB Memory). Here is the steps to install the cluster.

Preparation

I have 3 Raspberry Pi 4 stacked with PoE headers and connected to a PoE switch at home. The are connected to Internet through a home router. All Pis are equipped with a 64GB Samsung SDXC card flushed with Ubuntu 20.04 image.

How to install Ubuntu Server and Minikube on Raspberry Pi 4 4GB+ (recommended)

Disclaimer: this step-by-step GIST has been created with no guarantees, I may have missed some steps because of distraction or chiptune improvised on-chair-dancing, so be patient and let me know if I must add or fix something.

This is the way for living long and prospering!

Download Raspberry Pi Imager

Download and install Raspberry Imager: https://www.raspberrypi.org/software/

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

	<html>
	<head>
	<script type="text/javascript" src="/jquery.min.js"></script>
	<title>Mime type checker</title>
	<script>
	$(function () {
	var result = $('div#result');
	if (window.FileReader && window.Blob) {
	$('span#submit').click(function () {
	var files = $('input#file').get(0).files;

	apiVersion: v1
	kind: ConfigMap
	metadata:
	name: pihole-config
	data:
	WEBPASSWORD: pihole
	TZ: 'Asia/Ho_Chi_Minh'
	DNS1: 1.1.1.1
	DNS2: 1.0.0.1

	apiVersion: v1
	kind: Pod
	metadata:
	name: ubuntu
	labels:
	app: ubuntu
	spec:
	containers:
	- image: ubuntu
	command:

	// https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP
	// https://scotthelme.co.uk/content-security-policy-an-introduction/
	// scanner: https://securityheaders.com/

	const rootDomain = `your-domain.com`; // or your server IP for dev

	const directives = {
	'img-src': [
	"*",
	"'self'",