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How to Fix Default Image Blocking Layouts in Gmail App (iOS & Android)
for Klaviyo Campaigns

A programmatic integration guide for resolving email rendering crashes inside Gmail App (iOS & Android) using Klaviyo's layout editor environment.

Root Bug Analysis

If layouts rely on images for structural spacing or navigation, blocking image downloads by default will collapse the structural boxes.

Active rendering engine: WebKit / Blink

Klaviyo Specific Guide

Klaviyo default templates omit image height constraints in the canvas editor, causing collapsed boxes when blocked. Define explicit widths and heights.

Integration Step:

Open your Klaviyo template editor. Drag an 'HTML' block directly into your layout timeline (do not use a standard text box). Clear the default skeleton content inside the Klaviyo markup editor and paste the RenderOps corrected inline code.

ESP Unsubscribe Alignment

When compiling custom HTML templates for Klaviyo, you must ensure your layout retains deliverability compliance loops. Klaviyo requires you to insert their specific unsubscribe merge tag, otherwise your campaign delivery will be flagged by automated spam audits.

Klaviyo Unsubscribe Tag:{% unsubscribe %}

Documented Client Behavior

Expected layout behavior based on target rendering engine specifications:

Documented behavior: Gmail App hides missing image asset boxes, collapsing elements. Explicit width and height attributes maintain space borders.

Interactive Klaviyo Custom Sandbox

Target Environment: Gmail App (iOS & Android)

Auto-compile fixes inside RenderOps Workspace

Load layout code directly into our Image→Base64 Encoder to compile responsive table frameworks that display cleanly in Gmail App (iOS & Android).

Launch Image→Base64 Encoder

Fix Default Image Blocking Layouts on Other clients for Klaviyo