Fang-Pen Lin fangpenlin

Multipart MIME Email Guide

This is a guide on how to send a properly formatted multipart email. Multipart email strings are MIME encoded, raw text email templates. This method of structuring an email allows for multiple versions of the same email to support different email clients.

// Example Multipart Email:
From: [email protected]
To: [email protected]
Subject: Multipart Email Example
Content-Type: multipart/alternative; boundary="boundary-string"

[iOS - Swift] How to communicate with iFrames inside WebView

To provide better shopping experience for Onefill users, we want to support as many shopping site as we can by injecting our JavaScript engine into those sites. However, some of them are using iframe which is outdated HTML tag to implement some forms like payment and signup. And due to security issue JavaScript can’t communicate with iframe unless it’s same domain or it’s your domain. So here is the approach we did to support iframe under iOS web view and so we can communicate with it.

Xcode: Version 8.2.1 (8C1002)
Swift: Apple Swift version 3.0.2 (swiftlang-800.0.63 clang-800.0.42.1)

Conclusion first

What I Wish I'd Known About Equity Before Joining A Unicorn

Disclaimer: This piece is written anonymously. The names of a few particular companies are mentioned, but as common examples only.

This is a short write-up on things that I wish I'd known and considered before joining a private company (aka startup, aka unicorn in some cases). I'm not trying to make the case that you should never join a private company, but the power imbalance between founder and employee is extreme, and that potential candidates would

Short name	Full name
csr	certificatesigningrequests
cs	componentstatuses
cm	configmaps
ds	daemonsets
deploy	deployments
ep	endpoints
ev	events
hpa	horizontalpodautoscalers

NOTE, April 18, 2020: I wrote this document in February 2019 when I was actively investigating Electron. I haven't used it since then and have largely forgotten what this was for or how electron-webpack works. I vaguely remember the problem, but that's it. It would appear based on the comments below that this document is still coming up in web searches but has become out of date and parts of it don't work. If anyone has specific fixes to my instructions, please leave them in the comments and I'll happily incorporate them.

Using electron-webpack without Node integration

Overview

The current version (as of 2019-02-02) of electron-webpack is set up with the assumption that your BrowserWindow instance has nodeIntegration: true. However, Electron is encouraging users to set nodeIntegration: false as a security precaution, and in the future BrowserWindows will have this setting set to false by default. Doing so now with electron-webpack throws an error because the index.html template has commonjs re

	import java.io.InputStream

	import org.apache.spark.sql.execution.datasources.jdbc.JdbcUtils
	import org.apache.spark.sql.{ DataFrame, Row }

	import org.postgresql.copy.CopyManager
	import org.postgresql.core.BaseConnection

	val jdbcUrl = s"jdbc:postgresql://..." // db credentials elided
	val connectionProperties = {

	from pyramid.security import NO_PERMISSION_REQUIRED

	def includeme(config):
	config.add_directive(
	'add_cors_preflight_handler', add_cors_preflight_handler)
	config.add_route_predicate('cors_preflight', CorsPreflightPredicate)

	config.add_subscriber(add_cors_to_response, 'pyramid.events.NewResponse')

	class CorsPreflightPredicate(object):

	node_modules
	dist/
	yarn.lock
	wwwroot

	### KERNEL TUNING ###

	# Increase size of file handles and inode cache
	fs.file-max = 2097152

	# Do less swapping
	vm.swappiness = 10
	vm.dirty_ratio = 60
	vm.dirty_background_ratio = 2

	const fullAlphabet = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
	const restrictedAlphabet = 'BCDFGHJKLMNPQRSTVWXZbcdfghjklmnpqrstvwxz';
	const threadPrefix = 'thread-';
	const messagePrefix = 'msg-';

	const isWhitespace = str => /^[\s\xa0]*$/.test(str);
	const isInvalidString = str => str ? (str.indexOf(threadPrefix) !== -1 \|\| str.indexOf(messagePrefix) !== -1) : false;

	const encode = function(str) {
	if (isWhitespace(str)) return str;