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Add X-CORS-Redirect-# header for debugging

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Rob Wu
2013-08-28 20:50:46 +02:00
parent d7a6564574
commit 3bb98d6bea
2 changed files with 12 additions and 2 deletions
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5
lib/cors-anywhere.js
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@@ -142,6 +142,11 @@ function onProxyResponse(req, res, response) {
// Exclude 307 & 308, because they are rare, and require preserving the method + request body
requestState.redirectCount_ = requestState.requestState_ + 1 || 1;
if (requestState.redirectCount_ <= requestState.maxRedirects) {
// Handle redirects within the server, because some clients (e.g. Android Stock Browser)
// cancel redirects.
// Set header for debugging purposes. Do not try to parse it!
res.setHeader('X-CORS-Redirect-' + requestState.redirectCount_, statusCode + ' ' + locationHeader);
req.method = 'GET';
requestState.location = parseURL(locationHeader);
proxyRequest(req, res, proxy);

9
lib/help.txt
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@@ -10,8 +10,13 @@ If the protocol is omitted, it defaults to http (https if port 443 is specified)
Cookies are disabled and stripped from requests.
The requested URL is available in the X-Request-URL response header. Non-existence of this
header implies that the requested URL was not recognized.
Redirects are automatically followed. For debugging purposes, each followed redirect results
in the addition of a X-CORS-Redirect-n header, where n starts at 1. This header is not
accessible by the XMLHttpRequest API.
The final request URL is available in the X-Request-URL response header. Non-existence of
this header implies that the requested URL was not recognized.
To prevent the use of the proxy for casual browsing, the API requires either the Origin
or the X-Requested-With header to be set. To avoid unnecessary preflight (OPTIONS) requests,