Double-escaped URL parameters when file argument contains special characters

[veggiesaurus]

Describe the bug
Weird behaviour when using file parameter combined with redirecting when having to login.

@Jordatious discovered this issue, he will add details below

To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots or videos
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Platform info (please complete the following information):

• OS [e.g. macOS Monterey]:
• Browser [e.g. chrome, safari, electron app]:
• Browser version [e.g. 22]:
• Backend branch [e.g. dev, v3b2 release]:
• Frontend branch [e.g. dev, v3b2 release]:

Additional context
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[Jordatious]

Ok cool I'll give some info here and if you can't reproduce, I can give some more info / screenshots. But @veggiesaurus was able to reproduce so I imagine the extra information isn't needed.

First log out of a CARTA server, as the issue seems to be specific to redirected URLs. Then go to a URL with special characters like this:

https://carta-beta.idia.ac.za/frontend/?file=/scratch3/projects/orcs/LMC_ORC_Jordan_polcal/1010~1060MHz/1644503471_sdp_l0.1010~1060MHz.LMCORC_im_3.image.tt0

Then log in, and you will see something like this.