[R-pkg-devel] InvalidUrlException for fontawesome icons in Rmarkdown vignette

Is it possible this is a windows build issue? Based on the below, it seems
the InvalidUrlException only affects windows checks. These problems were
not present when radiant version 1.3.2 was submitted, else it wouldn't have
gotten on CRAN in the first place.

https://cran.r-project.org/web/checks/check_results_radiant.html

Version: 1.3.2
Check: re-building of vignette outputs
Result: WARN
    Error(s) in re-building vignettes:
    --- re-building 'programming.Rmd' using rmarkdown
    `geom_smooth()` using formula 'y ~ x'
    `geom_smooth()` using formula 'y ~ x'
    pandoc.exe: Could not fetch http:/
netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.css
    InvalidUrlException "http:/
netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.css" "URL must
be absolute"
    Error: processing vignette 'programming.Rmd' failed with diagnostics:
    pandoc document conversion failed with error 67
    --- failed re-building 'programming.Rmd'

    SUMMARY: processing the following file failed:
     'programming.Rmd'

    Error: Vignette re-building failed.
    Execution halted
Flavors: r-devel-windows-ix86+x86_64
<https://www.r-project.org/nosvn/R.check/r-devel-windows-ix86+x86_64/radiant-00check.html>
, r-release-windows-ix86+x86_64
<https://www.r-project.org/nosvn/R.check/r-release-windows-ix86+x86_64/radiant-00check.html>
, r-oldrel-windows-ix86+x86_64
<https://www.r-project.org/nosvn/R.check/r-oldrel-windows-ix86+x86_64/radiant-00check.html>

Version: 1.3.2
Check: re-building of vignette outputs
Result: WARN
    Error(s) in re-building vignettes:
     ...
    --- re-building 'programming.Rmd' using rmarkdown
    `geom_smooth()` using formula 'y ~ x'
    `geom_smooth()` using formula 'y ~ x'
    Could not fetch http:/
netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.css
    InvalidUrlException "http:/
netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.css" "URL must
be absolute"
    Error: processing vignette 'programming.Rmd' failed with diagnostics:
    pandoc document conversion failed with error 61
    --- failed re-building 'programming.Rmd'

    SUMMARY: processing the following file failed:
     'programming.Rmd'

    Error: Vignette re-building failed.
    Execution halted
Flavor: r-devel-windows-x86_64-gcc10-UCRT
<https://www.r-project.org/nosvn/R.check/r-devel-windows-x86_64-gcc10-UCRT/radiant-00check.html>

I see the same issue come up on rhub and the issue has also started
showing up for the previous version of the package. See results link below.

https://cran.r-project.org/web/checks/check_results_radiant.html

On Mon, May 17, 2021 at 6:10 AM Uwe Ligges <
ligges at statistik.tu-dortmund.de> wrote:

Perhaps simply ask the CRAN crew to run the checks again, but as you do
not say which package this is about etc, we can hardly help.

Best,
Uwe Ligges

On 16.05.2021 08:16, Vincent Nijs wrote:

Hi,

I submitted a minor update to a package and ran into the vignette
warning/error shown. FYI the package change had nothing to do with the
vignette.

Flavor: r-devel-windows-ix86+x86_64
Check: re-building of vignette outputs, Result: WARNING
   Error(s) in re-building vignettes:
   --- re-building 'programming.Rmd' using rmarkdown
   pandoc.exe: Could not fetch

https://urldefense.com/v3/__https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.css__;!!Mih3wA!RgyNlE6MVL47VVcjFz5JmMHpLjgnleTMV8PUzdHRhLsF840eotO4MEE4Up6Lwg$

<

https://urldefense.com/v3/__https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.css__;!!Mih3wA!QDKkOEM4b68jQTdP9_B69YPFnkWW3hUKU0TnKHzueExJp5xLhyR22STQL1kQ0BZLBY0$

   InvalidUrlException "

https://urldefense.com/v3/__https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.css__;!!Mih3wA!RgyNlE6MVL47VVcjFz5JmMHpLjgnleTMV8PUzdHRhLsF840eotO4MEE4Up6Lwg$

<

https://urldefense.com/v3/__https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.css__;!!Mih3wA!QDKkOEM4b68jQTdP9_B69YPFnkWW3hUKU0TnKHzueExJp5xLhyR22STQL1kQ0BZLBY0$

"
"URL must be absolute"
   Error: processing vignette 'programming.Rmd' failed with diagnostics:
   pandoc document conversion failed with error 67
   --- failed re-building 'programming.Rmd'

I have used the Rmarkdown header below for this package for a number of
years and it has never caused an issue. The URL is absolute and links
properly. The vignette also builds fine locally.

I'm stuck and hope you can shed some light on this problem.

Thanks,

Vincent

---
title: Programming with Radiant
author: "Vincent R. Nijs, Rady School of Management (UCSD)"
date: "`r Sys.Date()`"
output:
   rmarkdown::html_vignette:
     css:

https://urldefense.com/v3/__https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.css__;!!Mih3wA!RgyNlE6MVL47VVcjFz5JmMHpLjgnleTMV8PUzdHRhLsF840eotO4MEE4Up6Lwg$

vignette: >
   %\VignetteIndexEntry{Programming with Radiant}
   %\VignetteEngine{knitr::rmarkdown}
   \usepackage[utf8]{inputenc}
---

      [[alternative HTML version deleted]]

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