Google's parser is lenient with some errors, such as trailing commas. Other consumers are not — fix the JSON.
Your template escapes the output (" instead of "). Output raw JSON inside the script tag, with only </ escaped.
"
"
</
It may be injected by JavaScript. Google can render it, but this tool reads server HTML. Save the rendered page and use --file.
--file
Open an issue with the command, the output (--json if possible) and your Node.js version — or compare with the online version.
--json
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