Mp3 is defined twice causing an error

[Tivoli]

If you have an issue with a specific extension or type

Locate the definition for your extension/type in the db.json file in the mime-db project. Does it look right?

[ ] No. File a mime-db issue.
[x] Yes: Go ahead and submit your issue/PR here and I'll look into it.

mp3 is defined in both audio/mp3 and audio/mpeg causing the following error:

Error: Attempt to change mapping for "mp3" extension from "audio/mp3" to "audio/mpeg". Pass force=true to allow this, otherwise remove "mp3" from the list of extensions for "audio/mpeg".

[broofa]

I'm not seeing it. Please provide a recipe for reproducing.

[Tivoli]

Originally i was importing 'mime/lite', switching back to just 'mime' seems to have resolved the issue for me. Closing this unless I can find a valid reproducible bug.

[Baggz]

@Tivoli

Having the same issue. Guess it's related to Webpack evaluating the import 'mime/lite' twice, causing it to import the db twice. Had to switch back to import 'mime' until I figure out how to fix it.

[caub]

I had this issue too (using webpack, and mime/lite@2.2.2)

path/to/server/node_modules/mime/Mime.js:49
        throw new Error(
        ^

Error: Attempt to change mapping for "mp3" extension from "audio/mp3" to "audio/mpeg". Pass `force=true` to allow this, otherwise remove "mp3" from the list of extensions for "audio/mpeg".
    at Mime.define path/to/node_modules/mime/Mime.js:49:15)

It's not easy to reproduce that issue, will try

[broofa]

@caub I need a recipe for reproducing this before I can reopen this issue. I'm not seeing any obvious issues in the module itself. (tests are passing, I'm able to require mime and mime/lite and lookup extensions and type w/out issue.)

[caub]

couldn't repeat this error, nevermind then

[jbreckel]

can reproduce this in node repl:

$ node
> var mime = require('mime')
undefined
> var mimelite = require('mime/lite')
Error: Attempt to change mapping for "mp3" extension from "audio/mp3" to "audio/mpeg". Pass `force=true` to allow this, otherwise remove "mp3" from the list of extensions for "audio/mpeg".
    at Mime.define (/path/to/project/node_modules/mime/Mime.js:49:15)
    at new Mime (/path/to/project/node_modules/mime/Mime.js:12:10)
>

[caub]

I found why, we need to copy types/standard.json, either JSON.parse(JSON.stringify(require('./types/standard'))) or something better in both mime and lite

or yea better, avoiding to mutate, like in your fix

[broofa]

published in v2.3