npm behind a proxy fails with status 403

Question

I m trying to run npm behind a proxy  I ve tried both entering the proxy directly or through Authoxy   npm config set proxy http   localhost 8999 npm config set https-proxy http   localhost 8999   Regardless of which proxy I use  I always end up with the same error when running npm search   npm info it worked if it ends with ok npm verb cli    node     usr local bin npm    search    npm info using npm 1 1 45 npm info using node v0 8 4 npm verb config file  Users xxx  npmrc npm verb config file  usr local etc npmrc npm verb config file  usr local lib node modules npm npmrc npm WARN Building the local index for the first time  please be patient npm verb url raw  - all npm verb url resolving    https   registry npmjs org       - all    npm verb url resolved https   registry npmjs org - all npm info retry registry request attempt 1 at 09 48 47 npm http GET https   registry npmjs org - all npm info retry will retry  error on last attempt  Error  tunneling socket could not be established  sutatusCode 403 npm info retry registry request attempt 2 at 09 48 57 npm http GET https   registry npmjs org - all npm info retry will retry  error on last attempt  Error  tunneling socket could not be established  sutatusCode 403 npm info retry registry request attempt 3 at 09 49 57 npm http GET https   registry npmjs org - all npm ERR  Error  tunneling socket could not be established  sutatusCode 403 npm ERR      at ClientRequest onConnect   usr local lib node modules npm node modules request tunnel js 148 19  npm ERR      at ClientRequest g  events js 185 14  npm ERR      at ClientRequest EventEmitter emit  events js 115 20  npm ERR      at Socket socketOnData  http js 1383 11  npm ERR      at TCP onread  net js 410 27    The command always fails with sutatusCode  sic   403 - which means unauthorized  I have set up Authoxy to not require a username password  The same error happens when I bypass Authoxy and provide the real proxy credentials for our NTLM proxy in the form of http    user pass proxy port   How can I make this work through the proxy   Update  I have created an issue on the NPM project to report this  https   github com isaacs npm issues 2866

User · Accepted Answer

OK  so within minutes after posting the question  I found the answer myself here  https   github com npm npm issues 2119 issuecomment-5321857  The issue seems to be that npm is not that great with HTTPS over a proxy  Changing the registry URL from HTTPS to HTTP fixed it for me   npm config set registry http   registry npmjs org    I still have to provide the proxy config  through Authoxy in my case   but everything works fine now   Seems to be a common issue  but not well documented  I hope this answer here will make it easier for people to find if they run into this issue

npm behind a proxy fails with status 403

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