[Bug]: Failed to resolve the callback address of the identity verification plugin.

### Is there an existing issue for this?

- [X] I have searched the existing issues

### OS/Web Information

- `code-server --version`: 4.19.1 0c98611e6b43803a9d5dba222d7023b569abfb49 with Code 1.84.2

### Steps to Reproduce

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### Expected

authentication success

### Actual

I have a personal authentication plugin. When the authentication is successful and it returns to vscode-server, there was a failure in parsing the callback address. All parameters of the callback address are encoded as a whole, but during parsing, the parameters are first obtained and then decoded, resulting in authentication failure for the callback.

Unable to duplicate lines in vscode, vscode authentication is normal.

### Logs

_No response_

### Screenshot/Video


### Does this issue happen in VS Code or GitHub Codespaces?

- [X] I cannot reproduce this in VS Code.
- [X] I cannot reproduce this in GitHub Codespaces.

### Are you accessing code-server over a secure context?

- [X] I am using a secure context.

### Notes

_No response_