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13:T4a1,<h2>Gmail proxy scope</h2><p>Gmail can serve remote images through Google's proxy. A Chrome extension can observe and cancel the receiver-side page request, but it cannot establish whether Google fetched or cached the remote asset earlier.</p><h2>What Mailshade does in Gmail</h2><ul><li>After opt-in, cancels receiver-side Chrome requests that match reviewed tracker-pixel endpoints, including supported Gmail proxy URL forms.</li><li>Shows a red-eye overlay naming the tracker endpoint detected in an opened message.</li><li>Detects supported tracking-link patterns locally and lets you choose direct or original.</li><li>Logs detected tracker occurrences to a per-sender dashboard in IndexedDB.</li></ul><h2>Evidence and limits</h2><p>The browser benchmark separately records direct requests, supported Gmail proxy forms and same-host benign controls. Its Gmail result describes receiver-side Chrome behavior and does not infer an earlier Google server fetch.</p><h2>Keep ordinary images</h2><p>Mailshade targets reviewed endpoint paths and supported proxy forms rather than disabling all remote images. The benchmark includes same-host benign controls to test that distinction.</p>10:["$","div",null,{"dangerouslySetInnerHTML":{"__html":"$13"}}]
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