Source evidence

Fatal Error hsts_plugin_get_headers()

Headers Security Advanced & HSTS WP · support · 2025-09-15T09:19:00+00:00

Headers Security Advanced & HSTS WP plugin evidence original source source API

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0.64relevance

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Conversation

support

Dessi Cubbex resolved

There’s fatal error: hsts_plugin_get_headers(): Argument #1 ($headers) must be of type array, null given, called in /wp-includes/class-wp-hook.php on line 326 and defined in /wp-content/plugins/headers-security-advanced-hsts-wp/headers-security-advanced-hsts-wp.php:30 Hi @dessicubbex , Thanks for using the plugin and for your topic. For some reason, I’m having trouble receiving notifications for open topics. I have identified the cause, which has been resolved in version 5.1.0 released a short while ago. I have also released another version with additional fixes in version 5.1.1, which is currently available and corrects the reported issue. Thank you again for your feedback. If you need more information or assistance, please feel free to write to me.

Commercial Context

Opportunity

trust and abuse-prevention operations

HSTS abuse-prevention assurance for keeping sites trusted, protected, and recoverable

Buyer: site owners, agencies, and maintenance teams

Wedge: test HSTS lockouts, bot/spam defenses, risky access changes, and incident alerts

Proof Blocked card complete market

Analysis

codex:gpt-5.5

Summary: Headers Security Advanced threw a fatal type error when headers were null, and support later fixed it after missed topic notifications.

Evidence quote: Argument #1 ($headers) must be of type array, null given

Affected feature: security headers filter

bugs support security headers filter

Plugin

API

Headers Security Advanced & HSTS WP

90.0K active installs · 1.4M downloads · rating 98.0

clickjacking csp headers headers security hsts

Comments

1 shown

Andrea Ferro 2025-11-07T13:22:00+00:00

Hi @dessicubbex , Thanks for using the plugin and for your topic. For some reason, I’m having trouble receiving notifications for open topics. I have identified the cause, which has been resolved in version 5.1.0 released a short while ago. I have also released another version with additional fixes in version 5.1.1, which is currently available and corrects the reported issue. Thank you again for your feedback. If you need more information or assistance, please feel free to write to me.