{"record":{"id":"f2f4c73f396de7ce","repo":"basecamp/trix","slug":"this-browser-does-not-support-the-validity-propert","errorCode":null,"errorMessage":"This browser does not support the validity property for trix-editor elements.","messagePattern":"This browser does not support the validity property for trix-editor elements\\.","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"warning","filePath":"src/trix/elements/trix_editor_element.js","lineNumber":331,"sourceCode":"    return false\n  }\n\n  set disabled(value) {\n    console.warn(\"This browser does not support the [disabled] attribute for trix-editor elements.\")\n  }\n\n  get required() {\n    console.warn(\"This browser does not support the [required] attribute for trix-editor elements.\")\n\n    return false\n  }\n\n  set required(value) {\n    console.warn(\"This browser does not support the [required] attribute for trix-editor elements.\")\n  }\n\n  get validity() {\n    console.warn(\"This browser does not support the validity property for trix-editor elements.\")\n    return null\n  }\n\n  get validationMessage() {\n    console.warn(\"This browser does not support the validationMessage property for trix-editor elements.\")\n\n    return \"\"\n  }\n\n  get willValidate() {\n    console.warn(\"This browser does not support the willValidate property for trix-editor elements.\")\n\n    return false\n  }\n\n  formDisabledCallback(value) {\n  }\n","sourceCodeStart":313,"sourceCodeEnd":349,"githubUrl":"https://github.com/basecamp/trix/blob/470040131122bd44e269b4de0f2e9557f90ec994/src/trix/elements/trix_editor_element.js#L313-L349","documentation":"Reading 'validity' on a trix-editor in a browser without form-associated custom element support returns null and logs this warning, because the element cannot participate in native constraint validation. Code expecting a ValidityState object will receive null here. Non-fatal console warning.","triggerScenarios":"Accessing 'trixEditor.validity' (e.g., generic validation loops, or code reading validity.valid) in an unsupported browser, hitting the stub getter at trix_editor_element.js:330-333.","commonSituations":"Shared form-validation utilities that assume all controls expose ValidityState; constraint-validation UIs; older Safari/Firefox deployments.","solutions":["Check for null before using validity: fall back to custom validation for trix-editor elements.","Run constraint-validation-dependent code only in browsers with form-associated custom element support.","Skip trix-editor elements in generic validity loops and validate their value manually.","Filter the expected warning if it is known noise in your environment."],"exampleFix":"// before\nif (field.validity.valid) continue;\n// after\nconst valid = field.validity ? field.validity.valid : (field.tagName === 'TRIX-EDITOR' ? Boolean(field.value.trim()) : true);\nif (!valid) show(field);","handlingStrategy":"type-guard","validationCode":"if (!('ElementInternals' in window)) {\n  // validity will be null on trix-editor; use custom validation\n}","typeGuard":"function getValidity(el) {\n  return el.tagName === 'TRIX-EDITOR' && !('ElementInternals' in window)\n    ? null\n    : el.validity;\n}","tryCatchPattern":"const v = getValidity(editor);\nif (v) {\n  if (!v.valid) showError();\n} else {\n  if (!editor.value.trim()) showError();\n}","preventionTips":["Null-check validity before using ValidityState properties","Branch validation logic per element type instead of assuming ValidityState exists","Feature-detect constraint-validation support once at app startup","Keep a manual validation path for trix-editor in your form library"],"tags":["browser-compatibility","custom-elements","validation","console-warning"],"backgroundTag":"form-associated-custom-element-unsupported","analyzedSha":"470040131122bd44e269b4de0f2e9557f90ec994","analyzedAt":"2026-09-02T10:19:15.878Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-09T16:17:10.729Z"}