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Option to enable fall-through on 404 error #1415

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Option to enable fall-through on 404 error #1415

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014e9a1
Do not carry out proxy-related web output if the response is 404
aral Jan 24, 2020
435806c
Skip entire default proxyRes behaviour if fallthrough is requested
aral Jan 26, 2020
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28 changes: 16 additions & 12 deletions lib/http-proxy/passes/web-incoming.js
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Original file line number Diff line number Diff line change
Expand Up @@ -170,21 +170,25 @@ module.exports = {
proxyReq.on('response', function(proxyRes) {
if(server) { server.emit('proxyRes', proxyRes, req, res); }

if(!res.headersSent && !options.selfHandleResponse) {
for(var i=0; i < web_o.length; i++) {
if(web_o[i](req, res, proxyRes, options)) { break; }
if (!(options.fallthrough === true && proxyRes.statusCode === 404)) {
if(!res.headersSent && !options.selfHandleResponse) {
for(var i=0; i < web_o.length; i++) {
if(web_o[i](req, res, proxyRes, options)) { break; }
}
}
}

if (!res.finished) {
// Allow us to listen when the proxy has completed
proxyRes.on('end', function () {
if (!res.finished) {
// Allow us to listen when the proxy has completed
proxyRes.on('end', function () {
if (server) server.emit('end', req, res, proxyRes);
});
// We pipe to the response unless its expected to be handled by the user
if (!options.selfHandleResponse) {
proxyRes.pipe(res);
}
} else {
if (server) server.emit('end', req, res, proxyRes);
});
// We pipe to the response unless its expected to be handled by the user
if (!options.selfHandleResponse) proxyRes.pipe(res);
} else {
if (server) server.emit('end', req, res, proxyRes);
}
}
});
}
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