nbgitpuller chrome extension not working when pulling branches other than main

[rohanjha123]

The nbgitpuller doesn't generate the right link when pulling branches other than main. When I tried pulling this file to data100.datahub.berkeley.edu using the chrome extension, the load failed. However, when I manually input all the info here and tried again, the pull succeeded, causing me to believe it's an issue with the chrome extension. A photo of the manual input can be seen below.

Expected behaviour

The link loads properly

Actual behaviour

The chrome extension file redirect doesn't load properly. Instead, the following error message pops up

How to reproduce

Use the chrome extension to generate a nbgitpuller link for this file

Your personal set up

• OS: macOS 11.3.1
• Version(s): nbgitpuller 1.1.0, jupyterhub 3.1.0, notebook==6.4.12, jupyterlab==3.4.5, python==3.9

Full environment

The full environment can be found [here](https://github.com/DS-100/datahub/blob/staging/deployments/data100/image/environment.yml) and [here](https://github.com/DS-100/datahub/blob/staging/deployments/data100/image/infra-requirements.txt).

Configuration

```python # jupyterhub_config.py ```

Logs

``` # paste relevant logs here, if any ```

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[balajialg]

@yuvipanda FYI!

[rohanjha123]

Friendly reminder @yuvipanda! Fixing this issue will be very helpful for the data 100 testing workflow

[yuvipanda]

Hi @balajialg and @rohanjha123! Unfortunately I don't think I have time to look into this right now :( However, if you can make a PR to the repo (which is at https://github.com/yuvipanda/nbgitpuller-link-generator-webextension), I can take a look. Otherwise it might be a while before I can look at this.

[balajialg]

@yuvipanda Thanks. I will sync up with @rohanjha123 to figure out ways to create PR to this repo.

[ericvd-ucb]

@rohanjha123 @balajialg - i am gonna make a comment on Webextension where you should be able to make the PR

https://github.com/yuvipanda/nbgitpuller-link-generator-webextension/issues/1