Update Dockerfile

Dockerfile

@@ -1,14 +1,14 @@
+# Dockerfile
 FROM node:16
 
-# Install latest chrome dev package and fonts to support major charsets (Chinese, Japanese, Arabic, Hebrew, Thai and a few others)
+# Install latest chrome dev package and fonts to support major charsets
 RUN wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - \
     && sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list' \
     && apt-get update \
     && apt-get install -y google-chrome-stable fonts-ipafont-gothic fonts-wqy-zenhei fonts-thai-tlwg fonts-kacst fonts-freefont-ttf libxss1 \
-      --no-install-recommends \
+    --no-install-recommends \
     && rm -rf /var/lib/apt/lists/*
 
-# Create app directory
 WORKDIR /usr/src/app
 
 # Add user so we don't need --no-sandbox.
@@ -27,12 +27,11 @@ COPY . .
 RUN chown -R pptruser:pptruser /usr/src/app
 
 # Create a directory for temporary files with correct permissions
-RUN mkdir -p /tmp/marp-work && chown -R pptruser:pptruser /tmp/marp-work
+RUN mkdir -p /tmp/marp-work && chown -R pptruser:pptruser /tmp/marp-work && chmod 755 /tmp/marp-work
 
 # Run everything after as non-privileged user.
 USER pptruser
 
-# Expose port
 EXPOSE 7860
-# Start the app
+
 CMD ["node", "server.js"]