OK hopefully this helps, I’ve compared the log difference with DEBUG enabled on the logging for when home.myopenhab.org/rest/sitemaps/ load and when it returns a blank page.
The biggest difference is the last part when it doesn’t load… it gets this:
2022-07-01 15:57:18.150 [DEBUG] [io.openhabcloud.internal.CloudClient] - Received cancel for request 1693493
2022-07-01 15:57:18.151 [DEBUG] [io.openhabcloud.internal.CloudClient] - on(): cancel
2022-07-01 15:57:18.152 [DEBUG] [io.openhabcloud.internal.CloudClient] - Received cancel for request 1693493
When it loads:
2022-07-01 15:56:50.685 [DEBUG] [io.openhabcloud.internal.CloudClient] - on(): request
2022-07-01 15:56:50.687 [DEBUG] [io.openhabcloud.internal.CloudClient] - Got request 1693286
2022-07-01 15:56:50.687 [DEBUG] [io.openhabcloud.internal.CloudClient] - Path /rest/sitemaps/
2022-07-01 15:56:50.688 [DEBUG] [io.openhabcloud.internal.CloudClient] - Method GET
2022-07-01 15:56:50.689 [DEBUG] [io.openhabcloud.internal.CloudClient] - Headers: {"sec-fetch-mode":"navigate","sec-fetch-site":"none","accept-language":"en-US,en;q=0.9","sec-fetch-user":"?1","accept":"text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9","sec-ch-ua":"\" Not A;Brand\";v=\"99\", \"Chromium\";v=\"102\", \"Google Chrome\";v=\"102\"","sec-ch-ua-mobile":"?0","sec-ch-ua-platform":"\"Windows\"","upgrade-insecure-requests":"1","host":"home.myopenhab.org:443","accept-encoding":"gzip, deflate, br","user-agent":"openhab-cloud/0.0.1","sec-fetch-dest":"document"}
2022-07-01 15:56:50.691 [TRACE] [io.openhabcloud.internal.CloudClient] - Body
2022-07-01 15:56:50.691 [DEBUG] [io.openhabcloud.internal.CloudClient] - Query null
2022-07-01 15:56:50.692 [DEBUG] [io.openhabcloud.internal.CloudClient] - Request method is GET
2022-07-01 15:56:50.693 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header sec-fetch-mode = navigate
2022-07-01 15:56:50.694 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header sec-fetch-site = none
2022-07-01 15:56:50.695 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header accept-language = en-US,en;q=0.9
2022-07-01 15:56:50.695 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header sec-fetch-user = ?1
2022-07-01 15:56:50.696 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header accept = text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
2022-07-01 15:56:50.698 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header sec-ch-ua = " Not A;Brand";v="99", "Chromium";v="102", "Google Chrome";v="102"
2022-07-01 15:56:50.698 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header sec-ch-ua-mobile = ?0
2022-07-01 15:56:50.699 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header sec-ch-ua-platform = "Windows"
2022-07-01 15:56:50.700 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header upgrade-insecure-requests = 1
2022-07-01 15:56:50.701 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header host = home.myopenhab.org:443
2022-07-01 15:56:50.702 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header accept-encoding = gzip, deflate, br
2022-07-01 15:56:50.703 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header user-agent = openhab-cloud/0.0.1
2022-07-01 15:56:50.703 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header sec-fetch-dest = document
2022-07-01 15:56:50.707 [DEBUG] [io.openhabcloud.internal.CloudClient] - onHeaders 1693286
2022-07-01 15:56:50.708 [TRACE] [io.openhabcloud.internal.CloudClient] - Sent headers to request 1693286
2022-07-01 15:56:50.709 [TRACE] [io.openhabcloud.internal.CloudClient] - {"headers":{"Transfer-Encoding":"chunked","Server":"Jetty(9.4.46.v20220331)","Date":"Fri, 01 Jul 2022 15:56:50 GMT","Content-Type":"application/json"},"responseStatusCode":200,"responseStatusText":"OK","id":1693286}
2022-07-01 15:56:50.710 [DEBUG] [io.openhabcloud.internal.CloudClient] - onResponseContent: 1693286, content size 224
2022-07-01 15:56:50.711 [TRACE] [io.openhabcloud.internal.CloudClient] - [{"name":"default","label":"Testv3","link":"https://home.myopenhab.org:443/rest/sitemaps/default","homepage":{"link":"https://home.myopenhab.org:443/rest/sitemaps/default/default","leaf":false,"timeout":false,"widgets":[]}}]
2022-07-01 15:56:50.712 [TRACE] [io.openhabcloud.internal.CloudClient] - Sent content to request 1693286
2022-07-01 15:56:50.713 [DEBUG] [io.openhabcloud.internal.CloudClient] - onComplete: 1693286
2022-07-01 15:56:50.714 [DEBUG] [io.openhabcloud.internal.CloudClient] - Finished responding to request 1693286
And when it doesn’t and just returns a blank:
2022-07-01 15:57:17.821 [DEBUG] [io.openhabcloud.internal.CloudClient] - on(): request
2022-07-01 15:57:17.823 [DEBUG] [io.openhabcloud.internal.CloudClient] - Got request 1693493
2022-07-01 15:57:17.826 [DEBUG] [io.openhabcloud.internal.CloudClient] - Path /rest/sitemaps/
2022-07-01 15:57:17.828 [DEBUG] [io.openhabcloud.internal.CloudClient] - Method GET
2022-07-01 15:57:17.830 [DEBUG] [io.openhabcloud.internal.CloudClient] - Headers: {"sec-fetch-mode":"navigate","sec-fetch-site":"none","accept-language":"en-US,en;q=0.9","sec-fetch-user":"?1","accept":"text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9","sec-ch-ua":"\" Not A;Brand\";v=\"99\", \"Chromium\";v=\"102\", \"Google Chrome\";v=\"102\"","sec-ch-ua-mobile":"?0","sec-ch-ua-platform":"\"Windows\"","upgrade-insecure-requests":"1","host":"home.myopenhab.org:443","cache-control":"max-age=0","accept-encoding":"gzip, deflate, br","user-agent":"openhab-cloud/0.0.1","sec-fetch-dest":"document"}
2022-07-01 15:57:17.834 [TRACE] [io.openhabcloud.internal.CloudClient] - Body
2022-07-01 15:57:17.836 [DEBUG] [io.openhabcloud.internal.CloudClient] - Query null
2022-07-01 15:57:17.837 [DEBUG] [io.openhabcloud.internal.CloudClient] - Request method is GET
2022-07-01 15:57:17.838 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header sec-fetch-mode = navigate
2022-07-01 15:57:17.839 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header sec-fetch-site = none
2022-07-01 15:57:17.839 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header accept-language = en-US,en;q=0.9
2022-07-01 15:57:17.841 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header sec-fetch-user = ?1
2022-07-01 15:57:17.841 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header accept = text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
2022-07-01 15:57:17.843 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header sec-ch-ua = " Not A;Brand";v="99", "Chromium";v="102", "Google Chrome";v="102"
2022-07-01 15:57:17.844 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header sec-ch-ua-mobile = ?0
2022-07-01 15:57:17.844 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header sec-ch-ua-platform = "Windows"
2022-07-01 15:57:17.846 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header upgrade-insecure-requests = 1
2022-07-01 15:57:17.846 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header host = home.myopenhab.org:443
2022-07-01 15:57:17.848 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header cache-control = max-age=0
2022-07-01 15:57:17.848 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header accept-encoding = gzip, deflate, br
2022-07-01 15:57:17.849 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header user-agent = openhab-cloud/0.0.1
2022-07-01 15:57:17.850 [DEBUG] [io.openhabcloud.internal.CloudClient] - Jetty set header sec-fetch-dest = document
2022-07-01 15:57:17.856 [DEBUG] [io.openhabcloud.internal.CloudClient] - onHeaders 1693493
2022-07-01 15:57:17.856 [TRACE] [io.openhabcloud.internal.CloudClient] - Sent headers to request 1693493
2022-07-01 15:57:17.857 [TRACE] [io.openhabcloud.internal.CloudClient] - {"headers":{"Transfer-Encoding":"chunked","Server":"Jetty(9.4.46.v20220331)","Date":"Fri, 01 Jul 2022 15:57:17 GMT","Content-Type":"application/json"},"responseStatusCode":200,"responseStatusText":"OK","id":1693493}
2022-07-01 15:57:17.859 [DEBUG] [io.openhabcloud.internal.CloudClient] - onResponseContent: 1693493, content size 224
2022-07-01 15:57:17.859 [TRACE] [io.openhabcloud.internal.CloudClient] - [{"name":"default","label":"Testv3","link":"https://home.myopenhab.org:443/rest/sitemaps/default","homepage":{"link":"https://home.myopenhab.org:443/rest/sitemaps/default/default","leaf":false,"timeout":false,"widgets":[]}}]
2022-07-01 15:57:17.861 [TRACE] [io.openhabcloud.internal.CloudClient] - Sent content to request 1693493
2022-07-01 15:57:17.862 [DEBUG] [io.openhabcloud.internal.CloudClient] - onComplete: 1693493
2022-07-01 15:57:17.864 [DEBUG] [io.openhabcloud.internal.CloudClient] - Finished responding to request 1693493
2022-07-01 15:57:18.149 [DEBUG] [io.openhabcloud.internal.CloudClient] - on(): cancel
2022-07-01 15:57:18.150 [DEBUG] [io.openhabcloud.internal.CloudClient] - Received cancel for request 1693493
2022-07-01 15:57:18.151 [DEBUG] [io.openhabcloud.internal.CloudClient] - on(): cancel
2022-07-01 15:57:18.152 [DEBUG] [io.openhabcloud.internal.CloudClient] - Received cancel for request 1693493