NET::ERR_CERT_AUTHORITY_INVALID Your connection is not private ERR_SSL_PROTOCOL_ERROR Use code with caution.
It likely indicates a local frontend calling its own backend during development or testing.
While port numbers can be chosen arbitrarily, port 11501 is heavily standardized within specific development ecosystems: https localhost11501 2021
The year 2021 was pivotal for local development:
In the world of software development and network engineering, URLs are the gateways to digital resources. While most people are familiar with addresses like https://google.com , developers frequently encounter more obscure, localized addresses. One such example is https://localhost:11501/2021 . While most people are familiar with addresses like
This article explores what this specific address means, its context within the 2021 development landscape, and how to troubleshoot connections to it. What is https://localhost:11501 ? 1. The Anatomy of the URL
The address https://localhost:11501, often utilized with a 2021 timestamp, represents a secure local development server running on a user's machine, frequently used for testing applications. Port 11501 specifically functions as a designated communication channel for custom development environments, database listeners, or local management dashboards. For an overview of localhost functionality, visit TrendMicro Port numbers, URLs, and IP addresses - Online Help Center What is https://localhost:11501
You must point your specific backend framework or web server running on port 11501 to use these two files.
: localhost - This refers to the local machine. When you use localhost in a URL, you're essentially referring to your own computer as the server. This is commonly used during web development to test websites or web applications locally before making them live on the internet.