Troubleshooting Node errors - veleek/kudu GitHub Wiki

If your Node site is failing with some http 500 errors, try enabling logging. To do this, enable Application Logging to file system from the Azure portal (details here).

Once that's done:

• make a few failing request to get some logging going.
• using Kudu Console, go to D:\home\LogFiles\Application. You should see some .txt files, as well as an index.html.
• Click the down arrow next to index.html, and it should open a new tab with a page showing a list of errors.
• Click the log link on any entry to get details
• Another place to look for possible errors is under D:\home\site\wwwroot\iisnode