xlsx file mistaken for zip file in IE11

[oskar-fagerfjall]

Ran into an issue when trying out gossa in IE11. Yeah, I know, big surprise when using IE11, but it might be indicative of some underlying problem.

Symptom

I have a xlsx file on a gossa share. Using Edge (chromium version) I can download it just fine:

But if I use IE11 it changes the file extension and tries to download it as a zip file.

At first I thought it was a HTTP Content-Type header issue, but since the extension actually changes there must be some JavaScript voodoo going on.

Environment

Server

Virtual hardware running on Hyper-V on 2012R2
OS is Ubuntu 20.04.1
Container runtime is docker (using docker-compose)
read-only volume mounted on /share

docker-compose ps

REPOSITORY	TAG	IMAGE ID	CREATED	SIZE
pldubouilh/gossa	latest	49ef9983246c	7 weeks ago	12.1MB

Clients

Issue verified on:

• IE11 on Windows 8.1

[pldubouilh]

hey - thank you for the super detailed report ! and sorry for the super slow reply !

very confusing issue ! but indeed, I'm never out of surprised with IE11 :) I'll do some testing on windows for my next release, I'll try to have a look see if I can repro.

cheers 👍