fix(analytics): drop file:// exceptions from error tracking

[posthog]

Changes

• Error tracking picked up a Gatsby crash no real posthog.com visitor can hit: it fires only from a page saved to disk and opened over file://. The cost is triage noise, not a broken flow.
• The saved HTML still boots Gatsby and our posthog-js snippet. Gatsby resolves the local file path as the route, finds no page-data, and throws page resources for … not found. Not rendering React. Exception autocapture then files it as a new issue.
• before_send in gatsby/onPreBootstrap.ts already drops dev-server exceptions, but it checked only window.location.hostname against localhost/127.0.0.1. On file:// the hostname is an empty string, so the guard missed it.
• Fix: also return null when window.location.protocol === 'file:'. One condition silences the whole offline-copy category, not just this instance.

-        if (event && event.event === '$exception' && (hostname === 'localhost' || hostname === '127.0.0.1')) {
+        if (
+            event &&
+            event.event === '$exception' &&
+            (hostname === 'localhost' || hostname === '127.0.0.1' || window.location.protocol === 'file:')
+        ) {

No visual change, so no screenshots. The edit touches the generated posthog-init.js snippet only.

Checklist

• I've read the docs and/or content style guides.
• Words are spelled using American English
• Use relative URLs for internal links
• I've checked the pages added or changed in the Vercel preview build
• If I moved a page, I added a redirect in vercel.json

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Created with PostHog Desktop from this inbox report.

[posthog]

🦔 PostHog Review reviewed this pull request

Nothing worth raising this time, so here's a calming picture instead:

[github-actions]

Deploy preview

Status	Details	Updated (UTC)
🟢 Ready	View preview	Aug 28, 2026 01:23PM

[github-actions]

Bundle report

Total JS (gzip)

8.15 MiB (+0.1 KiB / +0.0%)

Eager graph (modules shipped in each entrypoint's initial chunks)

Entrypoint	Eager size	Budget	Modules
✅ app	16.90 MiB (+0.0 KiB / +0.0%)	report-only	2035

Largest modules in the app closure

Module	Size
./src/data/mcp-tools.json	1053.0 KiB
css ./node_modules/.pnpm/css-loader@5.2.7_webpack@5.101.3/node_modules/css-loader/dist/cjs.js??ruleSet[1].rules[8].oneOf[1].use[1]!./node_modules/.pnpm/postcss-loader@4.3.0_postcss@8.5.6_webpack@5.101.3/node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[8].oneOf[1].use[2]!./src/styles/global.css	754.4 KiB
./src/components/Stickers/Stickers.tsx	696.4 KiB
./node_modules/.pnpm/@radix-ui+react-icons@1.3.2_react@18.3.1/node_modules/@radix-ui/react-icons/dist/react-icons.esm.js	481.4 KiB
./node_modules/.pnpm/rehype-raw@7.0.0/node_modules/rehype-raw/lib/index.js + 29 modules	395.1 KiB
./src/hooks/useCustomers.tsx + 55 modules	370.0 KiB
./node_modules/.pnpm/@posthog+icons@0.36.6_react-dom@18.3.1_react@18.3.1__react@18.3.1/node_modules/@posthog/icons/dist/posthog-icons.es.js	354.8 KiB
./node_modules/.pnpm/react-markdown@8.0.7_@types+react@16.14.66_react@18.3.1/node_modules/react-markdown/lib/react-markdown.js + 88 modules	351.4 KiB
./src/components/ProductComparisonTable/index.tsx + 126 modules	301.7 KiB
./node_modules/.pnpm/cloudinary-core@2.14.0_lodash@4.17.21/node_modules/cloudinary-core/cloudinary-core.js	281.9 KiB
./src/components/SearchUI/index.tsx + 87 modules	273.0 KiB
./node_modules/.pnpm/@posthog+brand@0.8.0_react@18.3.1/node_modules/@posthog/brand/dist/generated/hoggies/svg/magnifying-glass.mjs	254.7 KiB
./node_modules/.pnpm/framer-motion@10.18.0_react-dom@18.3.1_react@18.3.1__react@18.3.1/node_modules/framer-motion/dist/es/render/dom/motion.mjs + 109 modules	253.9 KiB
./node_modules/.pnpm/d3@7.9.0/node_modules/d3/src/index.js + 208 modules	247.4 KiB
./src/components/Pricing/PricingSlider/Slider.tsx + 87 modules	240.1 KiB

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Eager-graph budgets are report-only until a baseline is established. Sizes are gzip of public/**/*.js; eager size is webpack module source bytes for the modules actually shipped in the entrypoint's initial chunks (post-tree-shake).