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Base64 URL encode produces wrong output if \ (backslash) at input #9292

@pekuz

Description

@pekuz

Expected Behavior

LP204\VFRFIN
TFAyMDRcVkZSRklO

Actual Behavior

LP204\VFRFIN
TFAyMDRcXFZGUkZJTg

Image

Reproduction Steps

use base64 encoded and as a static value type LP204\VFRFIN

Is there an existing issue for this?

Which sync method do you use?

  • Git sync.
  • Insomnia Cloud sync.
  • Local only

Additional Information

Revisiting the UI once again, no other action, shows that \ handling has more issues, \ clones itself very agressively:

LP204\\\\\\\\\\\\\\\\VFRFIN

Image

Insomnia Version

Version: Insomnia 11.6.1 Build date: 9/18/2025 OS: Windows_NT x64 10.0.22631 Electron: 37.2.6 Node: 22.17.1 Node ABI: 136 V8: 13.8.258.30-electron.0 Architecture: x64

What operating system are you using?

Windows

Operating System Version

Windows_NT x64 10.0.22631

Installation method

download

Last Known Working Insomnia version

No response

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B-bugBug: general classificationS-unverifiedStatus: Unverified by maintainer

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