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OlivierH71

Inject Power BI default fonts (@font-face) into custom visual iframes

Submitted by on ‎04-17-2026 06:18 AM

Custom visuals run in sandboxed iframes (allow-scripts only).
The FontPicker exposes Power BI web fonts (wf_standard-font / DIN, etc.) but the @FONT-face declarations are only in the parent page.
Custom visuals can't render these fonts — they silently fall back to Arial.

At minimum, the default font (DIN) should be injected into the iframe document. Currently, the only solution is to embed a base64 encoding of this font in the visual.less file which add extra unecessary load to power fabric and user's browser.

Status: New
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