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Leaflet browser fails to load scripts to display map #948

@alecGraves

Description

@alecGraves

Hello, when using leaflet, I am running into a problem viewing results. When I run leaflet() from my R command line interface, the page in the browser display is blank (white), and several "Loading failed for the <script>" errors are displayed in the browser javascript console:

> leaflet()
Loading failed for the <script> with source “file:///run/user/1000/doc/b2e131bd/lib/htmlwidgets-1.5.4/htmlwidgets.js”. [index.html:6:52](file:///run/user/1000/doc/b2e131bd/index.html)
Loading failed for the <script> with source “file:///run/user/1000/doc/b2e131bd/lib/jquery-3.6.0/jquery-3.6.0.min.js”. [index.html:7:52](file:///run/user/1000/doc/b2e131bd/index.html)
Loading failed for the <script> with source “file:///run/user/1000/doc/b2e131bd/lib/leaflet-1.3.1/leaflet.js”. [index.html:9:44](file:///run/user/1000/doc/b2e131bd/index.html)
Loading failed for the <script> with source “file:///run/user/1000/doc/b2e131bd/lib/proj4-2.6.2/proj4.min.js”. [index.html:11:44](file:///run/user/1000/doc/b2e131bd/index.html)
Loading failed for the <script> with source “file:///run/user/1000/doc/b2e131bd/lib/Proj4Leaflet-1.0.1/proj4leaflet.js”. [index.html:12:54](file:///run/user/1000/doc/b2e131bd/index.html)
Loading failed for the <script> with source “file:///run/user/1000/doc/b2e131bd/lib/leaflet-binding-2.2.2/leaflet.js”. [index.html:14:52](file:///run/user/1000/doc/b2e131bd/index.html)

on R 4.4.5, Linunx, Firefox, leaflet 2.2.2

SessionInfo():

> sessionInfo()
R version 4.4.3 (2025-02-28)
Platform: x86_64-pc-linux-gnu
Running under: elementary OS 7.1 Horus

Matrix products: default
BLAS:   /usr/lib/x86_64-linux-gnu/blas/libblas.so.3.10.0 
LAPACK: /usr/lib/x86_64-linux-gnu/lapack/liblapack.so.3.10.0

locale:
 [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C              
 [3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8    
 [5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8   
 [7] LC_PAPER=en_US.UTF-8       LC_NAME=C                 
 [9] LC_ADDRESS=C               LC_TELEPHONE=C            
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C       

time zone: America/Chicago
tzcode source: system (glibc)

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

other attached packages:
[1] reprex_2.1.1  leaflet_2.2.2

loaded via a namespace (and not attached):
 [1] digest_0.6.29     R6_2.5.1          fastmap_1.2.0     xfun_0.52        
 [5] magrittr_2.0.2    glue_1.6.1        htmltools_0.5.8.1 lifecycle_1.0.4  
 [9] cli_3.6.3         withr_3.0.2       jquerylib_0.1.4   compiler_4.4.3   
[13] tools_4.4.3       rlang_1.1.4       jsonlite_1.7.3    fs_1.5.2         
[17] htmlwidgets_1.5.4 crosstalk_1.2.0

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