leaflet map dose not load map and render behind proxy

Created on 24 Feb 2016 · 15Comments · Source: rstudio/leaflet

Hi, I am using Rstudio and shiny to build a map using leaflet. I configured http_proxy, https_proxy and ftp_proxy. download.file works, But leaflet map does not (in the viewer window of rstudio), it does not download map pictures and does not render. while in the web browser, through the browser proxy settings. leaflet downloads and renders.

Could you please make leaflet using R's proxy when displaying in rstudio?

Source

zhuobao

👍2

Most helpful comment

I don't think so -- probably Qt is making the network requests directly, and IIRC our QtWebView doesn't use a proxy and isn't user-configurable to do so (see https://github.com/rstudio/rstudio/blob/53e10c4f0f5a8b04ef1d80073f769cf69f948c22/src/cpp/desktop/DesktopNetworkAccessManager.cpp#L32 and https://github.com/rstudio/rstudio/blob/53e10c4f0f5a8b04ef1d80073f769cf69f948c22/src/cpp/desktop/DesktopSessionLauncher.cpp#L114-L120).

I'll open an issue in RStudio to track this.

jmcphers on 24 Feb 2016

❤2 👍2

All 15 comments

@jjallaire, @jmcphers, do you know if RStudio's viewer pane respects any proxy settings?

jcheng5 on 24 Feb 2016

I'll open an issue in RStudio to track this.

jmcphers on 24 Feb 2016

❤2 👍2

Same issue here. How can one deal with this issue in the meanwhile ?

VeilleData on 9 Mar 2016

Same issue.

colemanrob on 15 Mar 2016

👍2

In the meantime, a workaround is to click the button to "Show in new window" (i.e. to open it in the browser instead of the RStudio viewer panel).

brendanhoganvt on 26 Aug 2016

👍2

@jmcphers Could you link to the issue in RStudio so we can follow that? I had trouble locating it just now. For what it's worth, this only seems to be an issue for me in the RStudio Desktop. When I'm running RStudio Server (with the same proxies), it is fine.

brendanhoganvt on 26 Aug 2016

We don't currently have a public facing issue tracker for RStudio, but I've added a link to this github issue in the internal tracker (we'll update this thread when we have a fix).

jmcphers on 26 Aug 2016

@jmcphers FYI, RStudio does attempt to use the system proxy. See:

When I dealt with similar issues on Windows Live Writer, it was often the case that networking code that didn't use Windows' built-in HTTP APIs would have to try to duplicate Windows' own proxy settings. This would work if the proxy was a simple hostname/port, but some corporate settings would have more complicated settings, including JScript scripts that could execute arbitrary logic to map a hostname to a proxy host/port, and those cases at a minimum would fail. I don't know if these cases are that, or just a bug in the way I implemented the dynamic proxy code.

jcheng5 on 14 Oct 2016

The proxy factory does invoke the system proxy, but as far as I can tell we don't actually use the proxy factory any more; the only place the proxy factory is referenced in the code today is in this comment.

https://github.com/rstudio/rstudio/blob/54cd3abcfc58837b433464c793fe9b03a87f0bb4/src/cpp/desktop/DesktopSessionLauncher.cpp#L114-L120

Possibly I'm missing an inferred usage? I've added your notes to the bug tracking this on the RStudio side and bumped it for consideration in our upcoming patch release (will probably bug you when we take a look at look at it to get your perspective!).

jmcphers on 14 Oct 2016

@jmcphers Nice catch! That would explain it! (probably)

jcheng5 on 14 Oct 2016

We have a new RStudio preview out today that has a fix intended to address this issue. Would one of you affected by the issue be willing to give it a test drive to see if it resolves your problem? @zhuobao @VeilleData @colemanrob

https://www.rstudio.com/products/rstudio/download/preview/

jmcphers on 30 Nov 2016

👍1

@jmcphers It did work for me! Thanks for this update (but updated from 0.99.xx).

Xytreyum on 6 Jan 2017

For what it's worth, I just ran into this again in RStudio Desktop Version 1.0.136, on windows behind a proxy. If I open the Viewer in a new window, it displays fine. But within the RStudio viewer window in the lower right corner, it shows nothing but a gray background.

In RStudio Server Version 1.0.44, on linux behind the same proxy, the viewer preview window is fine.

brendanhoganvt on 23 Feb 2017

I am not using any proxy. But I still cannot use leaflet. Viewer (or zoom) is blank, browser says "cannot find local host". Here is my sessioninfo().

sessionInfo()
R version 3.4.2 (2017-09-28)
Platform: x86_64-apple-darwin15.6.0 (64-bit)
Running under: macOS High Sierra 10.13.1

Matrix products: default
BLAS: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib
LAPACK: /Library/Frameworks/R.framework/Versions/3.4/Resources/lib/libRlapack.dylib

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] stats graphics grDevices utils datasets methods
[7] base

other attached packages:
[1] leaflet_1.1.0.9000 forcats_0.2.0 stringr_1.2.0
[4] dplyr_0.7.4 purrr_0.2.4 readr_1.1.1
[7] tidyr_0.7.2 tibble_1.3.4 ggplot2_2.2.1
[10] tidyverse_1.2.1

loaded via a namespace (and not attached):
[1] reshape2_1.4.2 haven_1.1.0 lattice_0.20-35
[4] colorspace_1.3-2 htmltools_0.3.6 yaml_2.1.14
[7] rlang_0.1.4 foreign_0.8-69 glue_1.2.0
[10] modelr_0.1.1 readxl_1.0.0 bindrcpp_0.2
[13] bindr_0.1 plyr_1.8.4 munsell_0.4.3
[16] gtable_0.2.0 cellranger_1.1.0 rvest_0.3.2
[19] htmlwidgets_0.9 psych_1.7.8 httpuv_1.3.5
[22] crosstalk_1.0.0 parallel_3.4.2 broom_0.4.3
[25] Rcpp_0.12.14 xtable_1.8-2 scales_0.5.0
[28] jsonlite_1.5 mime_0.5 mnormt_1.5-5
[31] hms_0.4.0 digest_0.6.12 stringi_1.1.6
[34] shiny_1.0.5 grid_3.4.2 cli_1.0.0
[37] tools_3.4.2 magrittr_1.5 lazyeval_0.2.1
[40] crayon_1.3.4 pkgconfig_2.0.1 xml2_1.1.1
[43] lubridate_1.7.1 rstudioapi_0.7 assertthat_0.2.0
[46] httr_1.3.1 R6_2.2.2 nlme_3.1-131
[49] compiler_3.4.2

hugh1li on 25 Nov 2017

I have the same? problem. Leaflet map is not rendered in the RStudio Viewer Pane, the map is just grey. I am using RStudio 1.1.383 and this is the sessionInfo:

R version 3.4.2 (2017-09-28)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows >= 8 x64 (build 9200)

Matrix products: default

locale:
[1] LC_COLLATE=English_Germany.1252 LC_CTYPE=English_Germany.1252
[3] LC_MONETARY=English_Germany.1252 LC_NUMERIC=C
[5] LC_TIME=English_Germany.1252

attached base packages:
[1] stats graphics grDevices utils datasets methods base

other attached packages:
[1] leaflet_1.1.0.9000

loaded via a namespace (and not attached):
[1] htmlwidgets_0.9 shiny_1.0.5 compiler_3.4.2 magrittr_1.5 R6_2.2.2
[6] htmltools_0.3.6 tools_3.4.2 yaml_2.1.14 Rcpp_0.12.13 crosstalk_1.0.0
[11] jsonlite_1.5 digest_0.6.12 xtable_1.8-2 httpuv_1.3.5 mime_0.5