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Asked: 2026-06-13T05:10:02+00:00

I’m learning Javascript and again I have a question. As document.write(location.protocol); outputs the protocol

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I’m learning Javascript and again I have a question. As document.write(location.protocol); outputs the protocol used to send and receive data, something like http, https or something like that, but I’m placing a file on the desktop and opening it using the browser. So in the address bar it is showing me something like this:

file:///C:/Users/malik/Desktop/display.html

//when i use 
document.write(location.protocol);
//it outputs 
//file:

I want to ask is (‘file:’) any protocol, if yes then which one?

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1 Answer

  1. Editorial Team

    The file: protocol isn’t a real TCP/IP protocol, it’s a virtual protocol used by browsers to specify a resource that is read from the local disk rather than over a TCP/IP connecction.

    Ref: List of TCP/IP protocols

    Different browsers may use the file: prefix in different ways.

    Internet Explorer implementation

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