DADevArtDeveloper articles, curated
HomeAboutContactTermsPrivacyDMCA
#webdev#mrzaizai2k#vscode#devops

Everything worked perfectly on my laptop. πŸš€ The UI loaded, uploads succeeded, APIs responded instantly. But on demo day, in front of my boss, everything collapsed. πŸ’₯

TIL: CORS, IPs, and the Day My Demo Crashed πŸ”’ Mai Chi Bao...

Mai Chi BaoMai Chi BaoOct 1 '251 min read
Read full article on DEV
Everything worked perfectly on my laptop. πŸš€ The UI loaded, uploads succeeded, APIs responded instantly. But on demo day, in front of my boss, everything collapsed. πŸ’₯
Reactions
5
Comments
0

DevArt keeps this article discoverable at a fast, self-canonical URL and links clearly to the original DEV publication.

mrzaizai2k

TIL: CORS, IPs, and the Day My Demo Crashed πŸ”’

Mai Chi Bao ・ Sep 29 '25

#webdev #mrzaizai2k #vscode #devops

More from @mrzaizai2k

I’ll be honest with you: I didn’t wake up one morning thinking β€œLet me reverse-engineer TikTok today.” It started with something much simpler: β€œI just want to upload videos to TikTok programmatically… why is this so damn hard?”Breaking Down API Defenses: UA - Cookies - Signatures Browser πŸ€–

Related articles

Google Antigravity 1.0 to 2.0/IDE Quick Migration Guide

Google Antigravity 1.0 to 2.0/IDE Quick Migration Guide

@regnard

The Most Concerning AI Risk of 2026

The Most Concerning AI Risk of 2026

@sachagreif

Drow.js: A Practical Look at the Tiny Web Components Library

Drow.js: A Practical Look at the Tiny Web Components Library

@johnfacey

I decided to build a Kubernetes alternative. Yes, I know I'm crazy

I decided to build a Kubernetes alternative. Yes, I know I'm crazy

@denerfernandes

DevArt

Curated developer articles, tutorials, and engineering discussions for practical learning.

AboutContactTermsPrivacyDMCATerabox30tools
Visitor badge

Β© 2026 DevArt. All rights reserved.