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Check if the incoming header is set before applying to the response

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This commit is contained in:
Tim Neutkens 2018-06-13 22:06:36 +02:00
parent 06136d9111
commit 2a1075c122
1 changed files with 3 additions and 1 deletions
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4
server/utils.js
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@ -48,7 +48,9 @@ export function addCorsSupport (req, res) {
res.setHeader('Access-Control-Allow-Origin', req.headers.origin)
res.setHeader('Access-Control-Allow-Methods', 'OPTIONS, GET')
// Based on https://github.com/primus/access-control/blob/4cf1bc0e54b086c91e6aa44fb14966fa5ef7549c/index.js#L158
res.setHeader('Access-Control-Allow-Headers', req.headers['access-control-request-headers'])
if (req.headers['access-control-request-headers']) {
res.setHeader('Access-Control-Allow-Headers', req.headers['access-control-request-headers'])
}
if (req.method === 'OPTIONS') {
res.writeHead(200)