Error in re-building vignettes:
  ...
pandoc.exe: Could not fetch http://jeroenooms.github.io/V8/browserify.png
StatusCodeException (Status {statusCode = 404, statusMessage = "Not Found"}) [("Server","GitHub.com"),("Content-Type","text/html; charset=utf-8"),("Strict-Transport-Security","max-age=31557600"),("ETag","W/\"58c827b5-105\""),("Access-Control-Allow-Origin","*"),("Content-Encoding","gzip"),("X-GitHub-Request-Id","D0CE:04D3:5F92315:81E4E6A:58CA801E"),("Content-Length","179"),("Accept-Ranges","bytes"),("Date","Thu, 16 Mar 2017 12:07:59 GMT"),("Via","1.1 varnish"),("Age","0"),("Connection","keep-alive"),("X-Served-By","cache-hhn1523-HHN"),("X-Cache","MISS"),("X-Cache-Hits","0"),("X-Timer","S1489666079.016623,VS0,VE94"),("Vary","Accept-Encoding"),("X-Fastly-Request-ID","8b0b0456c915bc9365f091e28dec020e1b76651e"),("X-Response-Body-Start","<html>\n<head>\n<title> Homepage redirect </title>\n<script>\nwindow.location.hostname = \"jeroen.github.io\"\n</script>\n</head>\n<body>\n<h1> Moved! </h1>\n<p> My homepage has moved to <a href=\"https://jeroen.github.io\">https://jeroen.github.io</a>.</p>\n</body>\n</html>\n"),("X-Request-URL","GET http://jeroenooms.github.io:80/V8/browserify.png")] (CJ {expose = []})
Warning: running command '"D:/compiler/pandoc/pandoc" +RTS -K512m -RTS npm.utf8.md --to html --from markdown+autolink_bare_uris+ascii_identifiers+tex_math_single_backslash --output npm.html --smart --email-obfuscation none --self-contained --standalone --section-divs --table-of-contents --toc-depth 3 --template "d:\RCompile\CRANpkg\lib\3.3\rmarkdown\rmd\h\default.html" --highlight-style pygments --css "d:\RCompile\CRANpkg\lib\3.3\knitr\misc\vignette.css" --mathjax --variable "mathjax-url:https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML" --include-after-body "d:\RCompile\CRANpkg\lib\3.3\knitr\misc\vignette.html"' had status 67
Error: processing vignette 'npm.Rmd' failed with diagnostics:
pandoc document conversion failed with error 67
Execution halted