Railway•2y ago

Issues with Puppeteer

I'm using a package that internally uses puppeteer to convert markdown to a pdf, ive tried everything i can think of but i end up getting this error:

Error: Failed to launch the browser process!
[0514/033840.383516:ERROR:zygote_host_impl_linux.cc(100)] Running as root without --no-sandbox is not supported. See https://crbug.com/638180.
TROUBLESHOOTING: https://pptr.dev/troubleshooting
at Interface.onClose (/app/node_modules/@puppeteer/browsers/lib/cjs/launch.js:262:24)
at Interface.emit (node:events:525:35)
at Interface.close (node:readline:590:8)
at Socket.onend (node:readline:280:10)
at Socket.emit (node:events:525:35)
at endReadableNT (node:internal/streams/readable:1358:12)
at processTicksAndRejections (node:internal/process/task_queues:83:21)

Error: Failed to launch the browser process!
[0514/033840.383516:ERROR:zygote_host_impl_linux.cc(100)] Running as root without --no-sandbox is not supported. See https://crbug.com/638180.
TROUBLESHOOTING: https://pptr.dev/troubleshooting
at Interface.onClose (/app/node_modules/@puppeteer/browsers/lib/cjs/launch.js:262:24)
at Interface.emit (node:events:525:35)
at Interface.close (node:readline:590:8)
at Socket.onend (node:readline:280:10)
at Socket.emit (node:events:525:35)
at endReadableNT (node:internal/streams/readable:1358:12)
at processTicksAndRejections (node:internal/process/task_queues:83:21)

Which means the project is being ran as root, but puppeteer doesn't support that. I've also tried specifying in the launch options --no-sandbox:

const pdf = await mdToPdf({
      content: markdownText,
      pdf_options: {
        margin: {
          top: "0px"
        }
      },
      launch_options: {
        args: ['--no-sandbox', '--disable-setuid-sandbox'],
        executablePath: 'chromium-browser'
      }
    }, { as_buffer: true });

const pdf = await mdToPdf({
      content: markdownText,
      pdf_options: {
        margin: {
          top: "0px"
        }
      },
      launch_options: {
        args: ['--no-sandbox', '--disable-setuid-sandbox'],
        executablePath: 'chromium-browser'
      }
    }, { as_buffer: true });

Since its working locally im pretty sure the only issue is that the project is ran as root, and i was wondering if it was possible to fix this error? I can't seem to find a good way to convert markdown to a PDF without puppeteer, most packages on npm use it internally.

15 Replies

Percy•2y ago

Project ID: 6dd7933f-9582-4303-b591-7060ba6cf2f3

Brody•2y ago

untested, but wouldn't this be the correct syntax?

const pdf = await mdToPdf({
    content: markdownText,
    config: {
        pdf_options: {
            margin: {
                top: "0px"
            }
        },
        launch_options: {
            args: ['--no-sandbox', '--disable-setuid-sandbox'],
            executablePath: 'chromium-browser'
        }
    }

}, { as_buffer: true });

const pdf = await mdToPdf({
    content: markdownText,
    config: {
        pdf_options: {
            margin: {
                top: "0px"
            }
        },
        launch_options: {
            args: ['--no-sandbox', '--disable-setuid-sandbox'],
            executablePath: 'chromium-browser'
        }
    }

}, { as_buffer: true });

Rogue_RamOP•2y ago

Hm, ill try it and see if it changes anything yeah, that didn't change anything. still the same error

Brody•2y ago

is this the package you are using? https://www.npmjs.com/package/md-to-pdf

Rogue_RamOP•2y ago

yes

Brody•2y ago

i will do some testing and get back to you

Rogue_RamOP•2y ago

Thanks, I've never seen someone actually go out of their way to help that much before lol

Brody•2y ago

const pdf = await mdToPdf(
    {
        content: markdownText,
    },
    {
        pdf_options: {
            margin: {
                top: "0px",
            },
        },
        launch_options: {
            headless: "new",
            args: ["--no-sandbox", "--disable-setuid-sandbox"],
        },
    }
);

const pdf = await mdToPdf(
    {
        content: markdownText,
    },
    {
        pdf_options: {
            margin: {
                top: "0px",
            },
        },
        launch_options: {
            headless: "new",
            args: ["--no-sandbox", "--disable-setuid-sandbox"],
        },
    }
);

this works for me and just so you know as_buffer is not an option for either md-to-pdf or puppeteer

Rogue_RamOP•2y ago

well the rest of the code sorta uses the buffer to create a stream to pipe to the client (which worked locally when including that) but thats odd I will try this and see if it works, ty for your help

Brody•2y ago

i searched the md-to-pdf packages repo for that config option

Brody•2y ago

and the puppeteer launch_options does not have a as_buffer option either

Rogue_RamOP•2y ago

so your saying it just returns it as a buffer by default? eh it seems to work now Tysm for your help ive been working on this project non stop all day and my mind is going crazy lol

Brody•2y ago

https://github.com/simonhaenisch/md-to-pdf/blob/master/src/lib/generate-output.ts#L9 yes it seems that it is buffer

Rogue_RamOP•2y ago

mm ok

Brody•2y ago

no problem 🙂

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Issues with Puppeteer