Intercom Fails After Login Without Reload #827

Open
Open
Intercom Fails After Login Without Reload#827

Description

@nguyentoanit
nguyentoanit
opened on Nov 13, 2025

We are experiencing a critical issue with Intercom integration in our web application.

After a user logs in without a full page reload, the Intercom widget appears and lists existing conversations. However:

  • Existing conversations cannot be opened
  • Creating a new message often fails
  • Network tab shows intermittent 403 Forbidden errors with the message: “App suspended”
    • Specifically on requests to: POST /messenger/web/conversations/:id

If the user reloads the page after login, everything works as expected:

  • Conversations open normally
  • New messages are sent successfully

Context:

  • We are using the react-use-intercom package for frontend integration.
  • The app performs a soft reboot after login (without reloading the browser tab). Call shutdown and boot with intercomUserJwt then
  • When I had this issue it was always because the app_id passed was 'undefined'
Image

We are unsure whether this issue originates from the react-use-intercom package or from Intercom itself.
If you have any suggestions on how to fix this problem, kindly let me know.

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      , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
       blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

      Skip to content
      Intercom Fails After Login Without Reload #827
      Open
      Open
      Intercom Fails After Login Without Reload#827
      Description
      @nguyentoanit
      nguyentoanit
      opened on Nov 13, 2025
      We are experiencing a critical issue with Intercom integration in our web application.
      After a user logs in without a full page reload, the Intercom widget appears and lists existing conversations. However:
      • Existing conversations cannot be opened
      • Creating a new message often fails
      • Network tab shows intermittent 403 Forbidden errors with the message: “App suspended”
        • Specifically on requests to: POST /messenger/web/conversations/:id
      If the user reloads the page after login, everything works as expected:
      • Conversations open normally
      • New messages are sent successfully
      Context:
      • We are using the react-use-intercom package for frontend integration.
      • The app performs a soft reboot after login (without reloading the browser tab). Call shutdown and boot with intercomUserJwt then
      • When I had this issue it was always because the app_id passed was 'undefined'
      Image
      We are unsure whether this issue originates from the react-use-intercom package or from Intercom itself.
      
If you have any suggestions on how to fix this problem, kindly let me know.
      Metadata
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      Assignees
      No one assigned
        Labels
        No labels
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        No projects
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          No milestone
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          None yet
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          No branches or pull requests
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

          Skip to content
          Intercom Fails After Login Without Reload #827
          Open
          Open
          Intercom Fails After Login Without Reload#827
          Description
          @nguyentoanit
          nguyentoanit
          opened on Nov 13, 2025
          We are experiencing a critical issue with Intercom integration in our web application.
          After a user logs in without a full page reload, the Intercom widget appears and lists existing conversations. However:
          • Existing conversations cannot be opened
          • Creating a new message often fails
          • Network tab shows intermittent 403 Forbidden errors with the message: “App suspended”
            • Specifically on requests to: POST /messenger/web/conversations/:id
          If the user reloads the page after login, everything works as expected:
          • Conversations open normally
          • New messages are sent successfully
          Context:
          • We are using the react-use-intercom package for frontend integration.
          • The app performs a soft reboot after login (without reloading the browser tab). Call shutdown and boot with intercomUserJwt then
          • When I had this issue it was always because the app_id passed was 'undefined'
          Image
          We are unsure whether this issue originates from the react-use-intercom package or from Intercom itself.
          
If you have any suggestions on how to fix this problem, kindly let me know.
          Metadata
          Metadata
          Assignees
          No one assigned
            Labels
            No labels
            No labels
            Projects
            No projects
              Milestone
              No milestone
              Relationships
              None yet
              Development
              No branches or pull requests
              Issue actions
              
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

              Skip to content
              Intercom Fails After Login Without Reload #827
              Open
              Open
              Intercom Fails After Login Without Reload#827
              Description
              @nguyentoanit
              nguyentoanit
              opened on Nov 13, 2025
              We are experiencing a critical issue with Intercom integration in our web application.
              After a user logs in without a full page reload, the Intercom widget appears and lists existing conversations. However:
              • Existing conversations cannot be opened
              • Creating a new message often fails
              • Network tab shows intermittent 403 Forbidden errors with the message: “App suspended”
                • Specifically on requests to: POST /messenger/web/conversations/:id
              If the user reloads the page after login, everything works as expected:
              • Conversations open normally
              • New messages are sent successfully
              Context:
              • We are using the react-use-intercom package for frontend integration.
              • The app performs a soft reboot after login (without reloading the browser tab). Call shutdown and boot with intercomUserJwt then
              • When I had this issue it was always because the app_id passed was 'undefined'
              Image
              We are unsure whether this issue originates from the react-use-intercom package or from Intercom itself.
              
If you have any suggestions on how to fix this problem, kindly let me know.
              Metadata
              Metadata
              Assignees
              No one assigned
                Labels
                No labels
                No labels
                Projects
                No projects
                  Milestone
                  No milestone
                  Relationships
                  None yet
                  Development
                  No branches or pull requests
                  Issue actions
                  
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

                  Skip to content
                  Intercom Fails After Login Without Reload #827
                  Open
                  Open
                  Intercom Fails After Login Without Reload#827
                  Description
                  @nguyentoanit
                  nguyentoanit
                  opened on Nov 13, 2025
                  We are experiencing a critical issue with Intercom integration in our web application.
                  After a user logs in without a full page reload, the Intercom widget appears and lists existing conversations. However:
                  • Existing conversations cannot be opened
                  • Creating a new message often fails
                  • Network tab shows intermittent 403 Forbidden errors with the message: “App suspended”
                    • Specifically on requests to: POST /messenger/web/conversations/:id
                  If the user reloads the page after login, everything works as expected:
                  • Conversations open normally
                  • New messages are sent successfully
                  Context:
                  • We are using the react-use-intercom package for frontend integration.
                  • The app performs a soft reboot after login (without reloading the browser tab). Call shutdown and boot with intercomUserJwt then
                  • When I had this issue it was always because the app_id passed was 'undefined'
                  Image
                  We are unsure whether this issue originates from the react-use-intercom package or from Intercom itself.
                  
If you have any suggestions on how to fix this problem, kindly let me know.
                  Metadata
                  Metadata
                  Assignees
                  No one assigned
                    Labels
                    No labels
                    No labels
                    Projects
                    No projects
                      Milestone
                      No milestone
                      Relationships
                      None yet
                      Development
                      No branches or pull requests
                      Issue actions
                      
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

                      Skip to content
                      Intercom Fails After Login Without Reload #827
                      Open
                      Open
                      Intercom Fails After Login Without Reload#827
                      Description
                      @nguyentoanit
                      nguyentoanit
                      opened on Nov 13, 2025
                      We are experiencing a critical issue with Intercom integration in our web application.
                      After a user logs in without a full page reload, the Intercom widget appears and lists existing conversations. However:
                      • Existing conversations cannot be opened
                      • Creating a new message often fails
                      • Network tab shows intermittent 403 Forbidden errors with the message: “App suspended”
                        • Specifically on requests to: POST /messenger/web/conversations/:id
                      If the user reloads the page after login, everything works as expected:
                      • Conversations open normally
                      • New messages are sent successfully
                      Context:
                      • We are using the react-use-intercom package for frontend integration.
                      • The app performs a soft reboot after login (without reloading the browser tab). Call shutdown and boot with intercomUserJwt then
                      • When I had this issue it was always because the app_id passed was 'undefined'
                      Image
                      We are unsure whether this issue originates from the react-use-intercom package or from Intercom itself.
                      
If you have any suggestions on how to fix this problem, kindly let me know.
                      Metadata
                      Metadata
                      Assignees
                      No one assigned
                        Labels
                        No labels
                        No labels
                        Projects
                        No projects
                          Milestone
                          No milestone
                          Relationships
                          None yet
                          Development
                          No branches or pull requests
                          Issue actions
                          
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

                          Skip to content
                          Intercom Fails After Login Without Reload #827
                          Open
                          Open
                          Intercom Fails After Login Without Reload#827
                          Description
                          @nguyentoanit
                          nguyentoanit
                          opened on Nov 13, 2025
                          We are experiencing a critical issue with Intercom integration in our web application.
                          After a user logs in without a full page reload, the Intercom widget appears and lists existing conversations. However:
                          • Existing conversations cannot be opened
                          • Creating a new message often fails
                          • Network tab shows intermittent 403 Forbidden errors with the message: “App suspended”
                            • Specifically on requests to: POST /messenger/web/conversations/:id
                          If the user reloads the page after login, everything works as expected:
                          • Conversations open normally
                          • New messages are sent successfully
                          Context:
                          • We are using the react-use-intercom package for frontend integration.
                          • The app performs a soft reboot after login (without reloading the browser tab). Call shutdown and boot with intercomUserJwt then
                          • When I had this issue it was always because the app_id passed was 'undefined'
                          Image
                          We are unsure whether this issue originates from the react-use-intercom package or from Intercom itself.
                          
If you have any suggestions on how to fix this problem, kindly let me know.
                          Metadata
                          Metadata
                          Assignees
                          No one assigned
                            Labels
                            No labels
                            No labels
                            Projects
                            No projects
                              Milestone
                              No milestone
                              Relationships
                              None yet
                              Development
                              No branches or pull requests
                              Issue actions
                              
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

                              Skip to content
                              Intercom Fails After Login Without Reload #827
                              Open
                              Open
                              Intercom Fails After Login Without Reload#827
                              Description
                              @nguyentoanit
                              nguyentoanit
                              opened on Nov 13, 2025
                              We are experiencing a critical issue with Intercom integration in our web application.
                              After a user logs in without a full page reload, the Intercom widget appears and lists existing conversations. However:
                              • Existing conversations cannot be opened
                              • Creating a new message often fails
                              • Network tab shows intermittent 403 Forbidden errors with the message: “App suspended”
                                • Specifically on requests to: POST /messenger/web/conversations/:id
                              If the user reloads the page after login, everything works as expected:
                              • Conversations open normally
                              • New messages are sent successfully
                              Context:
                              • We are using the react-use-intercom package for frontend integration.
                              • The app performs a soft reboot after login (without reloading the browser tab). Call shutdown and boot with intercomUserJwt then
                              • When I had this issue it was always because the app_id passed was 'undefined'
                              Image
                              We are unsure whether this issue originates from the react-use-intercom package or from Intercom itself.
                              
If you have any suggestions on how to fix this problem, kindly let me know.
                              Metadata
                              Metadata
                              Assignees
                              No one assigned
                                Labels
                                No labels
                                No labels
                                Projects
                                No projects
                                  Milestone
                                  No milestone
                                  Relationships
                                  None yet
                                  Development
                                  No branches or pull requests
                                  Issue actions