Copilotfree, in-browser
Ask me anything about your lessons or your code.
“What is a port?” · “Why is my code erroring?”
Ask me anything about your lessons or your code.
“What is a port?” · “Why is my code erroring?”
The browser rule that a script from one site cannot read data belonging to another site. Origin means the scheme, host, and port together, so https://a.example.com and https://b.example.com count as different origins. Without this rule any page could quietly read your mail.