SAP Knowledge Base Article - Preview

3648494 - Service Layer returns a 502 - Proxy Error when calling the JavaScript SDK with the fetch() method.

Symptom

When making a Service Layer call for a JavaScript function that contains the fetch() method, the Service Layer returns the following error, and the call cannot be processed successfully:

<title>502 Proxy Error</title>
<body>
    <h1>Proxy Error</h1>
    <p>The proxy server received an invalid response from an upstream server.<br />
          The proxy server could not handle the request
    <p>Reason: <strong>Error reading from remote server</strong></p>
    </p>
</body>


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Environment

  • SAP Business One
  • SAP Business One, version for SAP HANA

Product

SAP Business One 10.0 ; SAP Business One 10.0, version for SAP HANA

Keywords

http 502 error, proxy error, service layer, sql query, javascript sdk, sap business one, crossjoin, oinv, rct2, ochh, fetch method, unsupported functionality, sap hana, on-premise deployment. , KBA , SBO-SDK-SVL , Service Layer , How To

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