rabbah edited a comment on issue #5043:
URL: https://github.com/apache/openwhisk/issues/5043#issuecomment-759526173
```
> curl -X POST -H'content-type: application/json' -d '{"name":"sfdsfs4 "}'
https://apigcp.nimbella.io/api/v1/web/playground/user463062/z
Hello!
```
vs.
```
> curl -X POST -d '{"name":"sfdsfs4 "}'
https://apigcp.nimbella.io/api/v1/web/playground/user463062/z
{"code":"b8ff36573cb0182382b699c5cf588d6f","error":"Illegal query: Invalid
input ' ', expected '+', '=', query-char, 'EOI', '&' or pct-encoded (line 1,
column 17): {\"name\":\"sfdsfs4 \"}\n ^"}
```
The latter uses `Content-Type: application/x-www-form-urlencoded` which is
effectively a query string. I didn't look up the spec but I suspect you have to
encode the character if that was your intent.
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