DIYgod/RSSHub · error · Error

Unhandled attribute: ${attribute}

Error message

Unhandled attribute: ${attribute}

What it means

bbc/utils.tsx wraps text in <strong>/<em> based on an attribute list. Any attribute other than 'bold' or 'italic' falls through to default and throws, so a new BBC visual attribute (e.g. underline, strikethrough) surfaces immediately instead of being silently dropped.

Source

Thrown at lib/routes/bbc/utils.tsx:65

    blocks?: Block[];
    items?: Block[];
};

const applyAttributes = (content: JSX.Element | string, attributes?: BlockAttribute[]): JSX.Element | string => {
    let result: JSX.Element | string = content;
    const attributeList = attributes ?? [];
    for (const attribute of attributeList) {
        switch (attribute) {
            case 'bold':
                result = <strong>{result}</strong>;
                break;

            case 'italic':
                result = <em>{result}</em>;
                break;

            default:
                throw new Error(`Unhandled attribute: ${attribute}`);
        }
    }
    return result;
};

const extractText = (blocks?: Block[]): string => {
    if (!blocks?.length) {
        return '';
    }

    return blocks
        .map((block) => {
            if (block.type === 'fragment') {
                return block.model?.text ?? '';
            }

            if (block.model?.text) {
                return block.model.text;

View on GitHub (pinned to bed535e087)

Solutions

1. Inspect the failing block in the BBC API response to see the new attribute string.
2. Add a case for the new attribute (e.g. 'underline' -> <u>, 'strikethrough' -> <s>) in the switch at lib/routes/bbc/utils.tsx:54.
3. If unsure how to render it, add a case returning the unmodified result instead of throwing.

Example fix

// before
case 'italic': result = <em>{result}</em>; break;
default: throw new Error(`Unhandled attribute: ${attribute}`);
// after
case 'italic': result = <em>{result}</em>; break;
case 'underline': result = <u>{result}</u>; break;
default: return result;

const KNOWN_ATTRIBUTES = new Set(['bold', 'italic']);
function allAttributesKnown(attrs: string[] = []): boolean {
  return attrs.every((a) => KNOWN_ATTRIBUTES.has(a));
}

const isKnownAttribute = (a: unknown): boolean =>
  a === 'bold' || a === 'italic';

try {
  return wrapWithAttributes(result, attributes);
} catch (e) {
  if (e instanceof Error && /Unhandled attribute/.test(e.message)) {
    logger.warn(e.message);
    return result; // ignore unknown attribute, keep text
  }
  throw e;
}

When it happens

Trigger: The BBC content API returns an attribute string that is not 'bold' or 'italic' inside a block's attributes array - BBC added a new inline formatting attribute.

Common situations: BBC rolls out underline/strikethrough/link styling on a new article; an old article migrated with a legacy attribute value; a regional BBC endpoint returning an extended attribute set.

Related errors

• 无法在 HTML 缓存中提取核心数据对象
• 文章列表不存在或为空
• wechat-mp: ${params.join(': ')} Consider raise an issue (men
• wechat-mp: ${params.join(': ')}
• Unable to find s-data in page

AI-assisted analysis of DIYgod/RSSHub@bed535e087 (2026-08-12). Data as JSON: /api/errors/191ccbaf9ca54310. Report an issue: GitHub.