High CPU and RAM usage while offline

[codingjerk]

On Linux, if I'm offline, name resolution results in temporary failure.

Cause of this, copilot lsp retry requests without backing off in some kind of loop, resulting in high CPU usage (100% of single core) and ram (growth is ~5MiB per second).

I'm getting tons of following lines in lsp.log (replaced \n with actual newlines to make it readable):

[ERROR][2025-09-12 03:42:53] ...lsp/handlers.lua:562	"[lsp] Request checkStatus: FetchError: getaddrinfo EAI_AGAIN api.github.com
    at fetch (~/.local/share/nvim/lazy/copilot.lua/copilot/node_modules/@adobe/helix-fetch/src/fetch/index.js:99:11)
    at processTicksAndRejections (node:internal/process/task_queues:105:5)
    at cachingFetch (~/.local/share/nvim/lazy/copilot.lua/copilot/node_modules/@adobe/helix-fetch/src/fetch/index.js:288:16)
    at PM.fetch (~/.local/share/nvim/lazy/copilot.lua/copilot/lib/src/network/helix.ts:78:22)
    at apiFetch (~/.local/share/nvim/lazy/copilot.lua/copilot/lib/src/network/github.ts:32:22)
    at fetchCopilotToken (~/.local/share/nvim/lazy/copilot.lua/copilot/lib/src/auth/copilotToken.ts:235:16)
    at authFromGitHubSession (~/.local/share/nvim/lazy/copilot.lua/copilot/lib/src/auth/copilotToken.ts:153:22)
    at oH.fetchCopilotToken (~/.local/share/nvim/lazy/copilot.lua/copilot/lib/src/auth/copilotTokenManager.ts:59:29)
    at ~/.local/share/nvim/lazy/copilot.lua/copilot/lib/src/auth/copilotTokenManager.ts:89:24 {
        type: 'system',
        _name: 'FetchError',
        code: 'EAI_AGAIN',
        errno: -3001,
        erroredSysCall: 'getaddrinfo'
    }"

[AntoineGS]

Ouff that's not good, thanks for the report!