fix: resolve several issues in message router#348
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wravery merged 4 commits intotauri-apps:devfrom Feb 16, 2026
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Ensures behavior matches the original CEF C++ implementation by adding early returns when maps are empty or entries are missing. This fixes a panic in `BrowserSideRouter::find_browser_all`. Reference C++ implementation: - BrowserSideRouter: https://github.com/chromiumembedded/cef/blob/5f93c2b090d19659451de4dfe44896ad7dbfd832/libcef_dll/wrapper/cef_message_router.cc#L535-L537 - BrowserInfoMap: https://github.com/chromiumembedded/cef/blob/5f93c2b090d19659451de4dfe44896ad7dbfd832/libcef_dll/wrapper/cef_browser_info_map.h#L159-L167
…m RendererSideRouter When sending a success response back to JavaScript, MessagePayload::String should be created as a V8 string to match the original CEF behavior. This commit fixes the issue where MessagePayload::String was incorrectly handled as binary data.
…ge-router-patch
This was referenced Feb 15, 2026
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Feb 15, 2026
Update code snippet for Bug 2 to match the actual implementation from PR tauri-apps#348 (tasuren/cef-rs:message-router-patch). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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This was referenced Mar 8, 2026
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Summary
This Pull Request addresses critical issues in the Message Router component to align its behavior with the original CEF C++ implementation. These fixes prevent application panics during startup and ensure correct data type mapping for IPC responses.
Linked Issues
MessageRouter/BrowserInfoMap::find_browser_allduring startup #346 (Panic in BrowserInfoMap)RendererSideRouteralways returnsArrayBufferto JS instead of string for success responses #347 (Incorrect response type in RendererSideRouter)Changes
Added missing early returns in
BrowserSideRouterandBrowserInfoMap.expect("missing browser info map")when navigation occurs before the router is fully initialized.Fixed response type mapping in
RendererSideRouterexecute_success_callbackto returnMessagePayload::Stringas a V8 string instead of anArrayBuffer.onSuccesscallback receives a proper string, matching standard CEF behavior.Verification
Verified using a port of the official CEF
message_routerexample: tasuren/cef-rs-message-router[object ArrayBuffer]to JavaScript.