diff --git a/public/index.html b/public/index.html
index b009c35..6d8864f 100644
--- a/public/index.html
+++ b/public/index.html
@@ -498,14 +498,17 @@ function closeAiModal(){
}
async function downloadPdf(){
+ const fallbackWin = window.open('', '_blank');
+ const openPrintFallback = (msg='') => {
+ if (msg) alert(msg);
+ if (!fallbackWin) return;
+ fallbackWin.document.write(`Coachingcards PDF${app.innerHTML}`);
+ fallbackWin.document.close();
+ fallbackWin.onload = () => setTimeout(() => fallbackWin.print(), 200);
+ };
+
if (!window.html2canvas || !window.jspdf?.jsPDF) {
- alert('PDF-Export-Bibliothek nicht geladen. Nutze Fallback-Druckdialog.');
- const printWin = window.open('', '_blank');
- if (printWin) {
- printWin.document.write(`Coachingcards PDF${app.innerHTML}`);
- printWin.document.close();
- printWin.onload = () => setTimeout(() => printWin.print(), 200);
- }
+ openPrintFallback('PDF-Export-Bibliothek nicht geladen. Nutze Fallback-Druckdialog.');
return;
}
@@ -539,12 +542,15 @@ async function downloadPdf(){
const usableH = pageH - margin * 2;
for (let i = 0; i < cards.length; i++) {
- const canvas = await window.html2canvas(cards[i], {
- scale: 2,
- useCORS: true,
- backgroundColor: '#ffffff',
- logging: false
- });
+ const canvas = await Promise.race([
+ window.html2canvas(cards[i], {
+ scale: 2,
+ useCORS: true,
+ backgroundColor: '#ffffff',
+ logging: false
+ }),
+ new Promise((_, rej) => setTimeout(() => rej(new Error('Render timeout')), 15000))
+ ]);
const img = canvas.toDataURL('image/jpeg', 0.98);
const imgW = canvas.width;
const imgH = canvas.height;
@@ -559,15 +565,10 @@ async function downloadPdf(){
}
pdf.save(`coachingcards-${new Date().toISOString().slice(0,10)}.pdf`);
+ if (fallbackWin && !fallbackWin.closed) fallbackWin.close();
} catch (e) {
console.error('PDF export failed', e);
- alert('PDF-Export fehlgeschlagen – öffne Druckdialog als Fallback.');
- const printWin = window.open('', '_blank');
- if (printWin) {
- printWin.document.write(`Coachingcards PDF${app.innerHTML}`);
- printWin.document.close();
- printWin.onload = () => setTimeout(() => printWin.print(), 200);
- }
+ openPrintFallback('PDF-Export fehlgeschlagen – öffne Druckdialog als Fallback.');
} finally {
root.remove();
}