Deepa from Stanford found an issue with the PHP proxy (index.php) in which PM URL's with ports in i2b2_config_data.js were not being automatically whitelisted by the proxy.
I found that the regex used to detect URLs did not have a filter for ports.
{"report":{"fcp":1392.800000000745,"ttfb":447.80000000074506,"pageVisibility":"visible","entityId":11184,"key":"jira.project.issue.view-issue","isInitial":true,"threshold":1000,"elementTimings":{},"userDeviceMemory":8,"userDeviceProcessors":16,"apdex":0.5,"journeyId":"d93f294a-8b08-42aa-8045-3ae252326ebd","navigationType":0,"readyForUser":1494.800000000745,"redirectCount":0,"resourceLoadedEnd":1635.4000000003725,"resourceLoadedStart":455.5,"resourceTiming":[{"duration":103.20000000111759,"initiatorType":"link","name":"https://community.i2b2.org/jira/s/7fd763ecdf5ed1f47fc4d22fa8382e97-CDN/4x9nqn/820011/16zrvj4/49fa3aa3d35a2cc689cbf274e66cc41a/_/download/contextbatch/css/_super/batch.css","startTime":455.5,"connectEnd":0,"connectStart":0,"domainLookupEnd":0,"domainLookupStart":0,"fetchStart":455.5,"redirectEnd":0,"redirectStart":0,"requestStart":0,"responseEnd":558.7000000011176,"responseStart":0,"secureConnectionStart":0},{"duration":109.19999999925494,"initiatorType":"link","name":"https://community.i2b2.org/jira/s/898b8076c5e82f53cd816ca393e45a56-CDN/4x9nqn/820011/16zrvj4/f614b50eeb842ebd1ea7ab2903699907/_/download/contextbatch/css/project.issue.navigator,jira.view.issue,jira.global,atl.general,-_super/batch.css?jira.create.linked.issue=true&richediton=true","startTime":455.80000000074506,"connectEnd":0,"connectStart":0,"domainLookupEnd":0,"domainLookupStart":0,"fetchStart":455.80000000074506,"redirectEnd":0,"redirectStart":0,"requestStart":0,"responseEnd":565,"responseStart":0,"secureConnectionStart":0},{"duration":464.40000000037253,"initiatorType":"script","name":"https://community.i2b2.org/jira/s/4c9c503fe98f210445831b0d7b0cdc33-CDN/4x9nqn/820011/16zrvj4/49fa3aa3d35a2cc689cbf274e66cc41a/_/download/contextbatch/js/_super/batch.js?locale=en-US","startTime":455.90000000037253,"connectEnd":796.5999999996275,"connectStart":766.5,"domainLookupEnd":455.90000000037253,"domainLookupStart":455.90000000037253,"fetchStart":455.90000000037253,"redirectEnd":0,"redirectStart":0,"requestStart":797.0999999996275,"responseEnd":920.3000000007451,"responseStart":814.5999999996275,"secureConnectionStart":780.8000000007451},{"duration":482.30000000074506,"initiatorType":"script","name":"https://community.i2b2.org/jira/s/694e598c1ae48b0f96655173631cd247-CDN/4x9nqn/820011/16zrvj4/f614b50eeb842ebd1ea7ab2903699907/_/download/contextbatch/js/project.issue.navigator,jira.view.issue,jira.global,atl.general,-_super/batch.js?jira.create.linked.issue=true&locale=en-US&richediton=true","startTime":456.5,"connectEnd":811,"connectStart":778.4000000003725,"domainLookupEnd":456.5,"domainLookupStart":456.5,"fetchStart":456.5,"redirectEnd":0,"redirectStart":0,"requestStart":812.4000000003725,"responseEnd":938.8000000007451,"responseStart":833,"secureConnectionStart":796.7000000011176},{"duration":393.09999999962747,"initiatorType":"script","name":"https://community.i2b2.org/jira/s/d41d8cd98f00b204e9800998ecf8427e-CDN/4x9nqn/820011/16zrvj4/1.0/_/download/batch/jira.webresources:calendar-en/jira.webresources:calendar-en.js","startTime":456.7000000011176,"connectEnd":833.5,"connectStart":804.8000000007451,"domainLookupEnd":456.7000000011176,"domainLookupStart":456.7000000011176,"fetchStart":456.7000000011176,"redirectEnd":0,"redirectStart":0,"requestStart":834,"responseEnd":849.8000000007451,"responseStart":848.2000000011176,"secureConnectionStart":819.9000000003725},{"duration":393.59999999962747,"initiatorType":"script","name":"https://community.i2b2.org/jira/s/53f54e0ac3f00bb56b136b4d2fff2853-CDN/4x9nqn/820011/16zrvj4/aae1242f5fc81cc6a5bb8bc963ccda29/_/download/contextbatch/js/atl.global,-_super/batch.js?locale=en-US","startTime":456.7000000011176,"connectEnd":832.9000000003725,"connectStart":801.9000000003725,"domainLookupEnd":456.7000000011176,"domainLookupStart":456.7000000011176,"fetchStart":456.7000000011176,"redirectEnd":0,"redirectStart":0,"requestStart":833.9000000003725,"responseEnd":850.3000000007451,"responseStart":849.2000000011176,"secureConnectionStart":815.3000000007451},{"duration":116.5,"initiatorType":"link","name":"https://community.i2b2.org/jira/s/30748292e4ca68be6947d7969829384b-CDN/4x9nqn/820011/16zrvj4/4f66da484ef7d95a2a604d3ab014374c/_/download/contextbatch/css/jira.global.look-and-feel,-_super/batch.css","startTime":456.90000000037253,"connectEnd":0,"connectStart":0,"domainLookupEnd":0,"domainLookupStart":0,"fetchStart":456.90000000037253,"redirectEnd":0,"redirectStart":0,"requestStart":0,"responseEnd":573.4000000003725,"responseStart":0,"secureConnectionStart":0},{"duration":436.40000000037253,"initiatorType":"script","name":"https://community.i2b2.org/jira/s/d41d8cd98f00b204e9800998ecf8427e-CDN/4x9nqn/820011/16zrvj4/1.0/_/download/batch/jira.webresources:calendar-localisation-moment/jira.webresources:calendar-localisation-moment.js","startTime":456.90000000037253,"connectEnd":876,"connectStart":850.2000000011176,"domainLookupEnd":456.90000000037253,"domainLookupStart":456.90000000037253,"fetchStart":456.90000000037253,"redirectEnd":0,"redirectStart":0,"requestStart":876,"responseEnd":893.3000000007451,"responseStart":889.5999999996275,"secureConnectionStart":862.7000000011176},{"duration":471.5,"initiatorType":"script","name":"https://community.i2b2.org/jira/rest/api/1.0/shortcuts/820011/766848d8ff8ea3676a80e44dfb51696a/shortcuts.js?context=issuenavigation&context=issueaction","startTime":457.2000000011176,"connectEnd":913.3000000007451,"connectStart":882.4000000003725,"domainLookupEnd":457.2000000011176,"domainLookupStart":457.2000000011176,"fetchStart":457.2000000011176,"redirectEnd":0,"redirectStart":0,"requestStart":913.4000000003725,"responseEnd":928.7000000011176,"responseStart":927.3000000007451,"secureConnectionStart":898.7000000011176},{"duration":87,"initiatorType":"link","name":"https://community.i2b2.org/jira/s/3ac36323ba5e4eb0af2aa7ac7211b4bb-CDN/4x9nqn/820011/16zrvj4/efa42a25652b26dfd802540c024826b3/_/download/contextbatch/css/com.atlassian.jira.projects.sidebar.init,-_super,-jira.view.issue,-project.issue.navigator/batch.css?jira.create.linked.issue=true&richediton=true","startTime":509.2000000011176,"connectEnd":0,"connectStart":0,"domainLookupEnd":0,"domainLookupStart":0,"fetchStart":509.2000000011176,"redirectEnd":0,"redirectStart":0,"requestStart":0,"responseEnd":596.2000000011176,"responseStart":0,"secureConnectionStart":0},{"duration":434.19999999925494,"initiatorType":"script","name":"https://community.i2b2.org/jira/s/8087506fefd02b4096991c90836b49f6-CDN/4x9nqn/820011/16zrvj4/efa42a25652b26dfd802540c024826b3/_/download/contextbatch/js/com.atlassian.jira.projects.sidebar.init,-_super,-jira.view.issue,-project.issue.navigator/batch.js?jira.create.linked.issue=true&locale=en-US&richediton=true","startTime":509.2000000011176,"connectEnd":925.7000000011176,"connectStart":896.2000000011176,"domainLookupEnd":509.2000000011176,"domainLookupStart":509.2000000011176,"fetchStart":509.2000000011176,"redirectEnd":0,"redirectStart":0,"requestStart":925.7000000011176,"responseEnd":943.4000000003725,"responseStart":942,"secureConnectionStart":913},{"duration":556.9000000003725,"initiatorType":"script","name":"https://community.i2b2.org/jira/s/d41d8cd98f00b204e9800998ecf8427e-CDN/4x9nqn/820011/16zrvj4/1.0/_/download/batch/jira.webresources:bigpipe-js/jira.webresources:bigpipe-js.js","startTime":521.3000000007451,"connectEnd":1061.0999999996275,"connectStart":1030.2000000011176,"domainLookupEnd":521.3000000007451,"domainLookupStart":521.3000000007451,"fetchStart":521.3000000007451,"redirectEnd":0,"redirectStart":0,"requestStart":1061.4000000003725,"responseEnd":1078.2000000011176,"responseStart":1077,"secureConnectionStart":1044.2000000011176},{"duration":879.5999999996275,"initiatorType":"script","name":"https://community.i2b2.org/jira/s/d41d8cd98f00b204e9800998ecf8427e-CDN/4x9nqn/820011/16zrvj4/1.0/_/download/batch/jira.webresources:bigpipe-init/jira.webresources:bigpipe-init.js","startTime":755.8000000007451,"connectEnd":1619.9000000003725,"connectStart":1595.0999999996275,"domainLookupEnd":755.8000000007451,"domainLookupStart":755.8000000007451,"fetchStart":755.8000000007451,"redirectEnd":0,"redirectStart":0,"requestStart":1619.9000000003725,"responseEnd":1635.4000000003725,"responseStart":1634.5999999996275,"secureConnectionStart":1607.4000000003725},{"duration":408,"initiatorType":"xmlhttprequest","name":"https://community.i2b2.org/jira/rest/webResources/1.0/resources","startTime":1268.9000000003725,"connectEnd":1659.5,"connectStart":1634.4000000003725,"domainLookupEnd":1268.9000000003725,"domainLookupStart":1268.9000000003725,"fetchStart":1268.9000000003725,"redirectEnd":0,"redirectStart":0,"requestStart":1659.5999999996275,"responseEnd":1676.9000000003725,"responseStart":1676.2000000011176,"secureConnectionStart":1647.2000000011176}],"fetchStart":0,"domainLookupStart":0,"domainLookupEnd":0,"connectStart":238,"connectEnd":329,"secureConnectionStart":300,"requestStart":329,"responseStart":448,"responseEnd":756,"domLoading":454,"domInteractive":1667,"domContentLoadedEventStart":1667,"domContentLoadedEventEnd":1709,"domComplete":2424,"loadEventStart":2424,"loadEventEnd":2424,"userAgent":"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)","marks":[{"name":"bigPipe.sidebar-id.start","time":1637.0999999996275},{"name":"bigPipe.sidebar-id.end","time":1637.9000000003725},{"name":"bigPipe.activity-panel-pipe-id.start","time":1638},{"name":"bigPipe.activity-panel-pipe-id.end","time":1640.4000000003725},{"name":"activityTabFullyLoaded","time":1720.5}],"measures":[],"correlationId":"15351adbe5a625","effectiveType":"4g","downlink":10,"rtt":0,"serverDuration":398,"dbReadsTimeInMs":19,"dbConnsTimeInMs":36,"applicationHash":"0629dd8d260e3954ece49053e565d01dabe11609","experiments":[]}}