Heroku Application Error

After clicking the button in README.md I enter a name and click “Create App”. After a minute or two, I get the message “Your app was successfully deployed.” However, if I click the button “View” another page opens with the following error message:

 Application error

An error occurred in the application and your page could not be served. If you are the application owner, check your logs for details. You can do this from the Heroku CLI with the command
heroku logs --tail 

I found the following issues #394 & #364 (the last one is similar however, I have not even entered my credentials yet)… I tried using Safari as well as Firefox and Firefox Developer Edition (in case my browsers were stripping the referee headers) and this link from #394: https://heroku.com/deploy?template=https://github.com/eduardoboucas/staticman/tree/master and I am still getting the Application Error.

[VincentTam]

Remarks about the referenced article:

I tried following the instructions about the additional manual treatment of the RSA PEM file (the removal of the first and the last \n) without success. As last, I decided not to follow its advice and I just pasted the contents of the PEM file into the text area as shown in the above screenshot. Do this for both RSA_PRIVATE_KEY and GITHUB_PRIVATE_KEY. Finally, I’ve managed to get through this problem.

Screenshot of my private app: heroku log -a secretman3 --tail

In the middle of this screenshot, you see that there’s an InvalidAsn1Error, which is caused by the incorrect formatting of the Heroku app’s config variable RSA_PRIVATE_KEY. After I corrected that (observe the green line set ... by user ...), the error was gone, and I was able to access the v3/encrypt endpoint.

[VincentTam]

@Isaac-Tait These two lines in the log explain everything.

Error: Empty key given
at NodeRSA.module.exports.NodeRSA.importKey (/app/node_modules/node-rsa/src/NodeRSA.js:178:19)

You need to set generate your own RSA private key PEM file and paste the content of this file into your Heroku app’s config variable.

Successful example: https://github.com/VincentTam/TestStaticmanLab/pull/95

Reference: https://hajekj.net/2020/04/15/staticman-setup-in-app-service/