Function isPdfUrl

public/js/utils.js:52–61

(url)

// Check if URL is a PDF based on Content-Type header
export async function isPdfUrl (url) {
  try {
    const response = await fetch(url, { method: 'HEAD' })
    const contentType = response.headers.get('Content-Type')
    return contentType === 'application/pdf'
  } catch (error) {
    console.warn('Error checking PDF content type:', error)
    return false
  }
}