fix: only set Node's WASM streaming callback when fetch is enabled#51956
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Node.js v24.16.0 removed the experimental_fetch gate around isolate->SetWasmStreamingCallback() (nodejs/node#62759). When fix_allow_disabling_fetch_in_renderer_and_worker_processes.patch was rebased for the version bump, the flag was restored but the gate was not. As a result, Node.js unconditionally overrode Blink's WebAssembly streaming callback in renderer and worker processes, where Electron passes --no-experimental-fetch and skips the bootstrap file that registers Node's JS-side streaming implementation. Any call to WebAssembly.compileStreaming() or instantiateStreaming() in a renderer with nodeIntegration then failed the CHECK(\!impl.IsEmpty()) assertion in node_wasm_web_api.cc and crashed the renderer. Restore the gate so Blink's streaming callback stays in place in processes where Node's fetch is disabled. Fixes #51950 Co-authored-by: Sam Attard <sattard@anthropic.com>
…ntegration Co-authored-by: Sam Attard <sattard@anthropic.com>
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dsanders11
approved these changes
Jun 11, 2026
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Backport of #51953
See that PR for details.
Notes: Fixed a renderer crash when calling
WebAssembly.compileStreaming()orWebAssembly.instantiateStreaming()withnodeIntegrationenabled.