# Dropbox calls fail with 404

**URL:** <https://community.transloadit.com/t/dropbox-calls-fail-with-404/15166>\
**Category:** Uppy\
**Created:** [December 16, 2019, 2:05pm UTC](https://community.transloadit.com/t/dropbox-calls-fail-with-404/15166 "2019-12-16T14:05:53Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Alan](https://yyz2.discourse-cdn.com/flex032/user_avatar/community.transloadit.com/alan/32/199_2.png) [@Alan](https://community.transloadit.com/u/Alan)\
**Post date:** [December 16, 2019, 2:05pm UTC](https://community.transloadit.com/t/dropbox-calls-fail-with-404/15166/1 "2019-12-16T14:05:53Z")

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Hi all,

I have a strange behavior where Uppy’s requests to dropbox return 404 when selecting a file or folder.

After examining the requests I could see that folder names or file names have `%2F` just before the folder or file name, like so:

`/dropbox/list/%2F<file or folder name>`  
or  
`/dropbox/get/%2F<file or folder name>`

I suspect this is the cause for the 404 from dropbox, but don’t know for sure…

Anyone can shed some light on this issue??

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**Author:** ![Alan](https://yyz2.discourse-cdn.com/flex032/user_avatar/community.transloadit.com/alan/32/199_2.png) [@Alan](https://community.transloadit.com/u/Alan)\
**Post date:** [December 17, 2019, 4:16pm UTC](https://community.transloadit.com/t/dropbox-calls-fail-with-404/15166/2 "2019-12-17T16:16:16Z")

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It seems that the `%2F` [has nothing to do](https://github.com/transloadit/uppy/issues/1992) with the 404 response - so I’m back to square 1.

Here’s a screenshot of my console:

 ![404](https://canada1.discourse-cdn.com/flex032/uploads/transloadit/original/1X/65eca75a4130d531e1905d42e9054ee53d296910.png)

Does anyone have an idea how to approach this?

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<div class="post-metadata">

**Author:** ![ifedapoolarewaju](https://yyz2.discourse-cdn.com/flex032/user_avatar/community.transloadit.com/ifedapoolarewaju/32/36_2.png) [@ifedapoolarewaju](https://community.transloadit.com/u/ifedapoolarewaju)\
**Post date:** [December 18, 2019, 9:21am UTC](https://community.transloadit.com/t/dropbox-calls-fail-with-404/15166/3 "2019-12-18T09:21:44Z")

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Hi @Alan could you try to fix the CORS errors and see if that rids of the issue?

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<div class="post-metadata">

**Author:** ![Alan](https://yyz2.discourse-cdn.com/flex032/user_avatar/community.transloadit.com/alan/32/199_2.png) [@Alan](https://community.transloadit.com/u/Alan)\
**Post date:** [December 18, 2019, 1:02pm UTC](https://community.transloadit.com/t/dropbox-calls-fail-with-404/15166/4 "2019-12-18T13:02:58Z")

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See my solution [here](https://github.com/transloadit/uppy/issues/1992)