how to using `tiup playground` with http_proxy or https_proxy?
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type/question
- Dominant language
- Go
- Stars
- 466
- Forks
- 338
- Avg merge
- 3d 7h
- Merged PRs (30d)
- 8
Description
when i running tiup playground, it report below issue. seems I need provide a https_proxy , but how to config it? with which parameter?

Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the tiup playground CLI help and any existing proxy-related documentation, then reproduce the reported error using http_proxy or https_proxy. Done means documenting the supported configuration parameter or clarifying that no such parameter is available.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- go
- Domain
- cli, documentation
- Issue type
- Documentation
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100