Calling Node.js from CGI program

We recently needed to write a program to convert an HTML file to XLSX and I
suspected it would be a good chance to get our feet wet with with Node.js.
As it turns out, it was pretty simple to do with the help of the "jsdom"
and "msexcel-builder-extended" modules.

Then I was thrown a curve ball.

Now we had to do this in an HTTP call. We use CGIDEV2, so I wrote a
process to output the HTML buffer to an IFS file. Then I can run my
process over it and push the resulting XLSX file to the browser. It
works....sort of.

It seems to randomly fail with this message: PASE for i already running in
this job.

I am not sure if this is because my process leaves PASE running or what. I
am not sure how to fix this.

Is there a way I can safely call this from a CGI program without running
into this message? I haven't tried QSHELL. That might be the simplest
solution, but I am also trying to understand what is happening here.