Zoho SalesIQ Mobile Black-Screen Issue

Hey all… sorry for the long message here, but I’ve tried for days to fix on my own using ask.discourse + my own Claude instance. I had my Claude pull the attached report together, including what we’ve tried, and other questions. Here is the initial context for you…

Full Context for Discourse Support
Site: canbarforum.incba.org (requires SSO from our membership management system)
Theme: Horizon (official Discourse remote theme)
Discourse version: v2026.9.0-latest (Ember v7.2.0)
Third-party integration: Zoho SalesIQ (visitor-tracking widget, kept in “Busy” status intentionally — tracking only, no
visible chat bubble intended)

  1. Objective
    Install Zoho SalesIQ purely for anonymous visitor tracking (page views, live presence) — no visible chat bubble, since
    the widget is deliberately kept in “Busy” status. Desktop works perfectly. Mobile browsers show a solid black screen
    covering the entire page.

  2. Current Symptom (unresolved)
    ● Desktop: fully functional, tracking works, no visual issues.
    ● Mobile (all browsers tested — Android Chrome, iOS): page loads, Discourse’s actual content is confirmed
    present and structurally correct in the DOM underneath, but a solid black layer visually covers the entire viewport.
    ● Confirmed via Chrome DevTools mobile emulation (Samsung Galaxy S20 Ultra profile) that Discourse’s Ember app
    boots correctly — this is not a Discourse JS/bootstrap failure. Something is being painted over a fully-functional
    page.

  3. Full Timeline of What Was Tried

    See attached for the full details.

    zoho-salesiq-mobile-issue-discourse-support.pdf (10.1 KB)