filter · HTML filters
Defer iframes (defer_iframe)
- Category:
- HTML
- CoreFilters:
- No
- OptimizeForBandwidth:
- No
- Risk:
- Dangerous set
Deprecated no-op: iframe deferral is built into defer_javascript; enabling this name alone never did anything.
When to use it
- Deprecated: the module accepts the name so that an existing configuration loads, and does nothing with it.
- Risk rating on these docs: Dangerous.
Risks
The HTML filters page lists no specific risks for this filter.
Frequently asked questions
- What does the defer_iframe filter do?
- Deprecated no-op: iframe deferral is built into
defer_javascript; enabling this name alone never did anything. - Is defer_iframe enabled by default?
- No. The module accepts the name so that existing configurations load, but the filter does nothing.
- Should I remove defer_iframe from my configuration?
- Yes. The name is kept only so that an existing configuration still loads; removing it changes nothing in the output.
Related filters
- add_base_tag — Add base tag
- add_head — Add head
- add_ids — Add IDs
- add_instrumentation — Add instrumentation
- collapse_whitespace — Collapse whitespace
- combine_heads — Combine heads
- compute_statistics — Compute HTML statistics
- convert_meta_tags — Convert meta tags
This page is drawn from the defer_iframe entry on HTML filters. Every filter in one table: PageSpeed filters.