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http: fix t.roundTrip undefined on js/wasm builds #53

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deadprogram merged 1 commit into from
Apr 27, 2026
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http: fix t.roundTrip undefined on js/wasm builds #53

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6 changes: 4 additions & 2 deletions http/roundtrip_js.go
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Original file line number Diff line number Diff line change
Expand Up @@ -68,9 +68,11 @@ func (t *Transport) RoundTrip(req *Request) (*Response, error) {
// to fall back on the Fetch API, unless it's not available.

// TINYGO: Dial/DialTLS & DialContext/DialTLSContext are not present in tinygo Transport struct, therefore the
// corresponding if statements were removed
// corresponding if statements were removed.
// TINYGO: t.roundTrip (the private fallback used by upstream Go) is not present in the TinyGo stub
// Transport, so return an error when the Fetch API is unavailable instead of calling it.
if jsFetchMissing || jsFetchDisabled {
return t.roundTrip(req)
return nil, errors.New("net/http: Fetch API is not available and no fallback transport is implemented for js/wasm")
}

ac := js.Global().Get("AbortController")
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