Functional Errors

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🔍 Functional Error Detection - Test Page

10 error detection rules with interactive generator

📖 Static Examples: All 10 error detection rules demonstrated below
Rule 1: DATA_ERROR

data-error Attribute

❌ Connection timeout. Please check your network.
Rule 2: ARIA_INVALID

aria-invalid (Flexible)

Invalid email address
Rule 3: ARIA_INVALID_TRUE

aria-invalid="true" (Strict)

Password too short
Rule 4: ERROR_CLASS

Error in Class Name

⚠️ Form validation error
Rule 5: ROLE_ALERT

role="alert"

🎮 Error Generator

Select rules and generate custom errors

⚡ Bulk Error Generation

0 of 0 errors generated

📱 Content in iFrame

The same functional error detection interface loaded in an isolated iframe

🌑 Content in Shadow DOM

The same functional error detection interface rendered within an isolated Shadow DOM with encapsulated styles