Blank page in pdf download r shiny

Nevertheless, if the user is working on Microsoft Internet Explorer 4. There are several drawbacks of using the manual approach such as lengthy and time-consuming procedure. Even, non-technical users find difficult to use the manual procedure. Apart from this, manual solution fails when PDF file is corrupted or damaged. And to fix PDF corruption issues it is advised to use a third-party solution. This utility resolves all the corruption issues and the blank page error.

Some of the highlighted features of the tool are —. R downloadHandler. It works fine when I run the shiny app from my FireFox browser, but longer reports seem to timeout. Is there anywhere that I can set timeout limit for shiny server?

Or is there another way I can do the download of the pdf report so that the browser will wait until it is finished? O, I neglected to say. These longer reports run fine when I run it through shiny in Rstudio, the problem is when I run it from my browser.

The report takes about 5 min to generate in Rstudio. Sorry I do not know much about shiny server, and you will have to read its documentation unless you have bought shiny server pro. I'm wondering why your report could take so long to compile.

If there are time-consuming code chunks, you can turn on cache in knitr e. The reason for the long generation time is just a data issue.

Im working with a big database and it takes long to run the actual data extracts. I have tried to bypass this by running the queries in a separate script and saving it to csv files.

Then I use the fread function in my Rnw file. But my reports got a few parameters, so to be able to cater for all the possible parameters that the user can select my csv files are very big and even fread takes a long time.

Currently my Shiny instance is deployed on a very slow virtual server, so upgrading it will solve this issue. But just wondered if there was another way of downloading a report that wont cause a timeout. I've tried using this method on linux, but it falls down at the rename step due to an invalid cross-device link. Show 2 more comments. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog.

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Linked 5. Related Hot Network Questions. Question feed. However, we recommend passing in params and using a new envir , because it provides better code isolation and makes things easier to debug.

If you have questions about this article or would like to discuss ideas presented here, please post on RStudio Community. Our developers monitor these forums and answer questions periodically. See help for more help with all things Shiny. Shiny from. There are two key parts for this: A downloadHandler which knits the document on demand and passes values to the document.

An R Markdown document which is parameterized. Example This app takes one input value, and passes it as a parameter to an. Rmd" file. Notes The rmarkdown::render function has many options to control the processing and output. This will require two changes: Change the filename argument of downloadHandler to "report.

It will also require pdflatex to be installed on your system. To generate a Microsoft Word document: Change the filename argument of downloadHandler to "report.

The basic parts of a Shiny app. How to get help. App formats and launching apps. Introduction to R Markdown. Introduction to interactive documents. Setting Output args via Render functions. Generating downloadable reports.