SSR stop working after upgrade to Spartacus v3.0

Question

Since the upgrade to Spartacus v3.0 SSR stop working with this output:

Unknown http response error: -1
Unknown http response error: -1
SSR rendering exceeded timeout, fallbacking to CSR for /

This happens for every route on the first render and then it fallback to CSR.

I tried to raise the timeout to a higher value, but that didn't help:

server.ts

...

const ngExpressEngine = NgExpressEngineDecorator.get(engine, { timeout: 10000 });

...

I get the same behaviour when I create a new Angular app and add the Spartacus schematics. Any idea how I can debug this?

question from:https://stackoverflow.com/questions/65845279/ssr-stop-working-after-upgrade-to-spartacus-v3-0

Answer 1

1. Unknown http response error: -1 might indicate, that there is an issue with connection to backend server, did you check if everything works as intended?

If server indeed is missing proper ssl certificate, try adding

process.env.NODE_TLS_REJECT_UNAUTHORIZED = '0';

to server.ts (for debugging only!)

2. You can also disable the timeout and Spartacus built-in SSR optimizations completely with:

const ngExpressEngine = NgExpressEngineDecorator.get(engine, null);

3. You can also debug your SSR server, as explained in the docs (https://sap.github.io/spartacus-docs/how-to-debug-server-side-rendered-storefront/#nodejs-debugging-in-vs-code)