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set Access-Control-Allow-Origin - same as v1 server #763

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set Access-Control-Allow-Origin - same as v1 server #763

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10 changes: 10 additions & 0 deletions llamafile/server/client.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -359,6 +359,16 @@ Client::append_http_response_message(char* p, int code, const char* reason)
// append standard headers
p = stpcpy(p, STANDARD_RESPONSE_HEADERS);

// Address CORS (Cross-Origin Resource Sharing) by setting the "Access-Control-Allow-Origin" header.
// The behavior aligns with v1 server.cpp, which dynamically sets this header to match the client's origin
std::string_view origin_header = get_header("Origin");
if (!origin_header.empty()) {
p = stpcpy(p, "Access-Control-Allow-Origin: ");
p = (char*)mempcpy(p, origin_header.data(), origin_header.size());
*p++ = '\r';
*p++ = '\n';
}

// append date header
tm tm;
p = stpcpy(p, "Date: ");
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