Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

Mime type of .docx files is being misidentified as application/zip

See original GitHub issue

When I set up file type restrictions, that included application/vnd.openxmlformats-officedocument.wordprocessingml.document, I was not able to upload a .docx file. After some debugging I figured out that the logic in file-type/index.js seems to be identifying the mime type of docx files as application/zip, which is incorrect.

Issue Analytics

State:
Created 5 years ago
Reactions:1
Comments:5 (1 by maintainers)

Top GitHub Comments

1reaction

arturicommented, Apr 3, 2018

We were thinking of just going back to replying on system extension reporting, but adding extra checks when its incorrect, like with some video files on a Mac. Do you have a suggestion on this?

1reaction

rzinurovcommented, Apr 3, 2018

@arturi thanks for the reply. Are you by any change going to check the file extension instead?

Top Results From Across the Web

DOCX File type in PHP finfo_file is application/zip

This causes a problem when uploading files to services that enforce matching file extension and MIME type. For example, Mediawiki-based wikis (written using...

Uploading MS Word files doesn't work ("File extension does ...

File extension ".doc" does not match the detected MIME type of the file (application/zip). I tried removing "doc" from application/msword in ...

Forcing apache to send correct Content-Type for docx files

Problem identified and resolved. The files in question were being downloaded via a custom application which sets its own Content-Type ...

Wrong MIME type - Microsoft Community

Both .doc and .dotx files being saved out of Word for Mac have the same MIME type. Template files should be ... MIME...

Fix mime type for attachment file uploads. - Jira - Atlassian

CONFSERVER-17718 - Downloading a .docx file in IE7/WinXP gives it a .zip ... PDF attachments with uppercase extension have wrong content type in...