panic: request error: Bad Gateway ("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">\n<HTML><HEAD><META HTTP-EQUIV=\"Content-Type\" CONTENT=\"text/html; charset=iso-8859-1\">\n<TITLE>ERROR: The request could not be satisfied</TITLE>\n</HEAD><BODY>\n<H1>502 ERROR</H1>\n<H2>The request could not be satisfied.</H2>\n<HR noshade size=\"1px\">\nThe origin closed the connection.\nWe can't connect to the server for this app or website at this time. There might be too much traffic or a configuration error. Try again later, or contact the app or website owner.\n<BR clear=\"all\">\nIf you provide content to customers through CloudFront, you can find steps to troubleshoot and help prevent this error by reviewing the CloudFront documentation.\n<BR clear=\"all\">\n<HR noshade size=\"1px\">\n<PRE>\nGenerated by cloudfront (CloudFront)\nRequest ID: VplZyLIIp4D71P3EUiDTWooKKJIdUvwDMG7qSzEcVPLYzaoO9C44Yg==\n</PRE>\n<ADDRESS>\n</ADDRESS>\n</BODY></HTML>")
/opt/hostedtoolcache/go/1.20.14/x64/src/testing/testing.go:1526 +0x372
/opt/hostedtoolcache/go/1.20.14/x64/src/testing/testing.go:1529 +0x650
/opt/hostedtoolcache/go/1.20.14/x64/src/runtime/panic.go:890 +0x263
/home/runner/work/ably-go/ably-go/ablytest/sandbox.go:129 +0x72
/home/runner/work/ably-go/ably-go/ablytest/sandbox.go:118 +0x52
/home/runner/work/ably-go/ably-go/ably/auth_integration_test.go:694 +0x16fe
/opt/hostedtoolcache/go/1.20.14/x64/src/testing/testing.go:1576 +0x217
/opt/hostedtoolcache/go/1.20.14/x64/src/testing/testing.go:1629 +0x806