From e6b7ae87b53adc5ad2ebed7b175086c9537b36cb Mon Sep 17 00:00:00 2001
From: Henrik Sylvester Oddergaard <hsp@hsp.dk>
Date: Sat, 11 May 2024 17:54:34 +0200
Subject: [PATCH] Stop breaking browser navigation shortcuts. (#527)

On Linux Chrome I use ALT + Arrows to go back in the browser, but instead
it paginates between examples.

Fixed it by checking for special key modifiers and do nothing (to the let the browser handle it).
I think the user always intends a system shortcut if they use a modifier key.
---
 public/arrays                          | 3 +++
 public/atomic-counters                 | 3 +++
 public/base64-encoding                 | 3 +++
 public/channel-buffering               | 3 +++
 public/channel-directions              | 3 +++
 public/channel-synchronization         | 3 +++
 public/channels                        | 3 +++
 public/closing-channels                | 3 +++
 public/closures                        | 3 +++
 public/command-line-arguments          | 3 +++
 public/command-line-flags              | 3 +++
 public/command-line-subcommands        | 3 +++
 public/constants                       | 3 +++
 public/context                         | 3 +++
 public/custom-errors                   | 3 +++
 public/defer                           | 3 +++
 public/directories                     | 3 +++
 public/embed-directive                 | 3 +++
 public/environment-variables           | 3 +++
 public/epoch                           | 3 +++
 public/errors                          | 3 +++
 public/execing-processes               | 3 +++
 public/exit                            | 3 +++
 public/file-paths                      | 3 +++
 public/for                             | 3 +++
 public/functions                       | 3 +++
 public/generics                        | 3 +++
 public/goroutines                      | 3 +++
 public/hello-world                     | 3 +++
 public/http-client                     | 3 +++
 public/http-server                     | 3 +++
 public/if-else                         | 3 +++
 public/interfaces                      | 3 +++
 public/json                            | 3 +++
 public/line-filters                    | 3 +++
 public/logging                         | 3 +++
 public/maps                            | 3 +++
 public/methods                         | 3 +++
 public/multiple-return-values          | 3 +++
 public/mutexes                         | 3 +++
 public/non-blocking-channel-operations | 3 +++
 public/number-parsing                  | 3 +++
 public/panic                           | 3 +++
 public/pointers                        | 3 +++
 public/random-numbers                  | 3 +++
 public/range                           | 3 +++
 public/range-over-channels             | 3 +++
 public/rate-limiting                   | 3 +++
 public/reading-files                   | 3 +++
 public/recover                         | 3 +++
 public/recursion                       | 3 +++
 public/regular-expressions             | 3 +++
 public/select                          | 3 +++
 public/sha256-hashes                   | 3 +++
 public/signals                         | 3 +++
 public/slices                          | 3 +++
 public/sorting                         | 3 +++
 public/sorting-by-functions            | 3 +++
 public/spawning-processes              | 3 +++
 public/stateful-goroutines             | 3 +++
 public/string-formatting               | 3 +++
 public/string-functions                | 3 +++
 public/strings-and-runes               | 3 +++
 public/struct-embedding                | 3 +++
 public/structs                         | 3 +++
 public/switch                          | 3 +++
 public/temporary-files-and-directories | 3 +++
 public/testing-and-benchmarking        | 3 +++
 public/text-templates                  | 3 +++
 public/tickers                         | 3 +++
 public/time                            | 3 +++
 public/time-formatting-parsing         | 3 +++
 public/timeouts                        | 3 +++
 public/timers                          | 3 +++
 public/url-parsing                     | 3 +++
 public/values                          | 3 +++
 public/variables                       | 3 +++
 public/variadic-functions              | 3 +++
 public/waitgroups                      | 3 +++
 public/worker-pools                    | 3 +++
 public/writing-files                   | 3 +++
 public/xml                             | 3 +++
 templates/example.tmpl                 | 3 +++
 83 files changed, 249 insertions(+)

diff --git a/public/arrays b/public/arrays
index 028fc060f..7693d73a4 100644
--- a/public/arrays
+++ b/public/arrays
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'switch';
diff --git a/public/atomic-counters b/public/atomic-counters
index ac967ccdc..2076a8805 100644
--- a/public/atomic-counters
+++ b/public/atomic-counters
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'rate-limiting';
diff --git a/public/base64-encoding b/public/base64-encoding
index 94812e28b..c6e230adb 100644
--- a/public/base64-encoding
+++ b/public/base64-encoding
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'sha256-hashes';
diff --git a/public/channel-buffering b/public/channel-buffering
index bbac79dd3..bbeca0929 100644
--- a/public/channel-buffering
+++ b/public/channel-buffering
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'channels';
diff --git a/public/channel-directions b/public/channel-directions
index 2f554f99c..45caab01b 100644
--- a/public/channel-directions
+++ b/public/channel-directions
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'channel-synchronization';
diff --git a/public/channel-synchronization b/public/channel-synchronization
index f9ce9501c..9a2f7f7bf 100644
--- a/public/channel-synchronization
+++ b/public/channel-synchronization
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'channel-buffering';
diff --git a/public/channels b/public/channels
index 2ad6de039..d16903d61 100644
--- a/public/channels
+++ b/public/channels
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'goroutines';
diff --git a/public/closing-channels b/public/closing-channels
index 331b79a2e..6d7a8d524 100644
--- a/public/closing-channels
+++ b/public/closing-channels
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'non-blocking-channel-operations';
diff --git a/public/closures b/public/closures
index 399acd31d..b4573e84a 100644
--- a/public/closures
+++ b/public/closures
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'variadic-functions';
diff --git a/public/command-line-arguments b/public/command-line-arguments
index 132a57d2e..3ce13bf86 100644
--- a/public/command-line-arguments
+++ b/public/command-line-arguments
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'testing-and-benchmarking';
diff --git a/public/command-line-flags b/public/command-line-flags
index e58d90942..d1d1c712b 100644
--- a/public/command-line-flags
+++ b/public/command-line-flags
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'command-line-arguments';
diff --git a/public/command-line-subcommands b/public/command-line-subcommands
index cc95b27bb..2061d1380 100644
--- a/public/command-line-subcommands
+++ b/public/command-line-subcommands
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'command-line-flags';
diff --git a/public/constants b/public/constants
index 1a5e56a17..37eec19cd 100644
--- a/public/constants
+++ b/public/constants
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'variables';
diff --git a/public/context b/public/context
index c60472df5..3f5f5e2ef 100644
--- a/public/context
+++ b/public/context
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'http-server';
diff --git a/public/custom-errors b/public/custom-errors
index 5e8dfc4dd..b0353d81c 100644
--- a/public/custom-errors
+++ b/public/custom-errors
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'errors';
diff --git a/public/defer b/public/defer
index 84cb13f94..926d3256d 100644
--- a/public/defer
+++ b/public/defer
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'panic';
diff --git a/public/directories b/public/directories
index 1629b1fda..d6be35f94 100644
--- a/public/directories
+++ b/public/directories
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'file-paths';
diff --git a/public/embed-directive b/public/embed-directive
index d7d06929d..7fa16b2b5 100644
--- a/public/embed-directive
+++ b/public/embed-directive
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'temporary-files-and-directories';
diff --git a/public/environment-variables b/public/environment-variables
index ad03f4a1f..8a1738f66 100644
--- a/public/environment-variables
+++ b/public/environment-variables
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'command-line-subcommands';
diff --git a/public/epoch b/public/epoch
index 8e7d9a70a..d59c45957 100644
--- a/public/epoch
+++ b/public/epoch
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'time';
diff --git a/public/errors b/public/errors
index ebe576d3c..aec55bb7b 100644
--- a/public/errors
+++ b/public/errors
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'generics';
diff --git a/public/execing-processes b/public/execing-processes
index 083d11ec7..b6882cebb 100644
--- a/public/execing-processes
+++ b/public/execing-processes
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'spawning-processes';
diff --git a/public/exit b/public/exit
index ff7073ceb..adfbd8af3 100644
--- a/public/exit
+++ b/public/exit
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'signals';
diff --git a/public/file-paths b/public/file-paths
index bfa4b61a5..26ea3042f 100644
--- a/public/file-paths
+++ b/public/file-paths
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'line-filters';
diff --git a/public/for b/public/for
index 514e97371..a9377c6bd 100644
--- a/public/for
+++ b/public/for
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'constants';
diff --git a/public/functions b/public/functions
index 87a3a044d..7e5efcf69 100644
--- a/public/functions
+++ b/public/functions
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'range';
diff --git a/public/generics b/public/generics
index c577e1afc..f58bb2ec6 100644
--- a/public/generics
+++ b/public/generics
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'struct-embedding';
diff --git a/public/goroutines b/public/goroutines
index b9784c738..0f98c1811 100644
--- a/public/goroutines
+++ b/public/goroutines
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'custom-errors';
diff --git a/public/hello-world b/public/hello-world
index 83c5787fb..c3a597025 100644
--- a/public/hello-world
+++ b/public/hello-world
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           
           if (e.key == "ArrowRight") {
diff --git a/public/http-client b/public/http-client
index c00245320..56d1b9223 100644
--- a/public/http-client
+++ b/public/http-client
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'logging';
diff --git a/public/http-server b/public/http-server
index e2ecdc6eb..f635fc63c 100644
--- a/public/http-server
+++ b/public/http-server
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'http-client';
diff --git a/public/if-else b/public/if-else
index 1bb293a4e..b11444a15 100644
--- a/public/if-else
+++ b/public/if-else
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'for';
diff --git a/public/interfaces b/public/interfaces
index fd3b13166..e32f4e609 100644
--- a/public/interfaces
+++ b/public/interfaces
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'methods';
diff --git a/public/json b/public/json
index e33a3ef61..7024f8984 100644
--- a/public/json
+++ b/public/json
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'regular-expressions';
diff --git a/public/line-filters b/public/line-filters
index 4dc0a8714..e116f155f 100644
--- a/public/line-filters
+++ b/public/line-filters
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'writing-files';
diff --git a/public/logging b/public/logging
index b945208e4..c63d09492 100644
--- a/public/logging
+++ b/public/logging
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'environment-variables';
diff --git a/public/maps b/public/maps
index affb54a93..6aa79fba5 100644
--- a/public/maps
+++ b/public/maps
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'slices';
diff --git a/public/methods b/public/methods
index 70d36d037..3ee20982b 100644
--- a/public/methods
+++ b/public/methods
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'structs';
diff --git a/public/multiple-return-values b/public/multiple-return-values
index 7f6d6d4bd..ddcc63fe0 100644
--- a/public/multiple-return-values
+++ b/public/multiple-return-values
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'functions';
diff --git a/public/mutexes b/public/mutexes
index b88885672..db3ba87b1 100644
--- a/public/mutexes
+++ b/public/mutexes
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'atomic-counters';
diff --git a/public/non-blocking-channel-operations b/public/non-blocking-channel-operations
index 4e70d05b6..0793a52fd 100644
--- a/public/non-blocking-channel-operations
+++ b/public/non-blocking-channel-operations
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'timeouts';
diff --git a/public/number-parsing b/public/number-parsing
index 9bebcd3ec..94bd625fa 100644
--- a/public/number-parsing
+++ b/public/number-parsing
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'random-numbers';
diff --git a/public/panic b/public/panic
index 08636d8ff..5565b2fcd 100644
--- a/public/panic
+++ b/public/panic
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'sorting-by-functions';
diff --git a/public/pointers b/public/pointers
index cbb64a885..20a56a05d 100644
--- a/public/pointers
+++ b/public/pointers
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'recursion';
diff --git a/public/random-numbers b/public/random-numbers
index 0598e4bc1..a292d877a 100644
--- a/public/random-numbers
+++ b/public/random-numbers
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'time-formatting-parsing';
diff --git a/public/range b/public/range
index 3c83d606a..f25d1870f 100644
--- a/public/range
+++ b/public/range
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'maps';
diff --git a/public/range-over-channels b/public/range-over-channels
index f46006046..8ead5425f 100644
--- a/public/range-over-channels
+++ b/public/range-over-channels
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'closing-channels';
diff --git a/public/rate-limiting b/public/rate-limiting
index 4ce31db2d..020e08ce8 100644
--- a/public/rate-limiting
+++ b/public/rate-limiting
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'waitgroups';
diff --git a/public/reading-files b/public/reading-files
index 085f564ee..85fc66210 100644
--- a/public/reading-files
+++ b/public/reading-files
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'base64-encoding';
diff --git a/public/recover b/public/recover
index b0d61c946..78faf8470 100644
--- a/public/recover
+++ b/public/recover
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'defer';
diff --git a/public/recursion b/public/recursion
index 8b07370ff..3d59b6c3c 100644
--- a/public/recursion
+++ b/public/recursion
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'closures';
diff --git a/public/regular-expressions b/public/regular-expressions
index 43d6beaa8..88c871e0a 100644
--- a/public/regular-expressions
+++ b/public/regular-expressions
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'text-templates';
diff --git a/public/select b/public/select
index 7b660f906..6035db8c4 100644
--- a/public/select
+++ b/public/select
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'channel-directions';
diff --git a/public/sha256-hashes b/public/sha256-hashes
index f05fd3cf7..d70d00ddb 100644
--- a/public/sha256-hashes
+++ b/public/sha256-hashes
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'url-parsing';
diff --git a/public/signals b/public/signals
index 6f8e1ca78..46acf10f1 100644
--- a/public/signals
+++ b/public/signals
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'execing-processes';
diff --git a/public/slices b/public/slices
index dc8889d79..8b545afa0 100644
--- a/public/slices
+++ b/public/slices
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'arrays';
diff --git a/public/sorting b/public/sorting
index cd946ab27..3d57b574d 100644
--- a/public/sorting
+++ b/public/sorting
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'stateful-goroutines';
diff --git a/public/sorting-by-functions b/public/sorting-by-functions
index 43e5f4752..2edb2d9ef 100644
--- a/public/sorting-by-functions
+++ b/public/sorting-by-functions
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'sorting';
diff --git a/public/spawning-processes b/public/spawning-processes
index 5c48a4317..cebb77566 100644
--- a/public/spawning-processes
+++ b/public/spawning-processes
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'context';
diff --git a/public/stateful-goroutines b/public/stateful-goroutines
index d4430729e..c6e381b28 100644
--- a/public/stateful-goroutines
+++ b/public/stateful-goroutines
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'mutexes';
diff --git a/public/string-formatting b/public/string-formatting
index 1d98485a8..ff24c03f1 100644
--- a/public/string-formatting
+++ b/public/string-formatting
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'string-functions';
diff --git a/public/string-functions b/public/string-functions
index b5f721564..aabfa4ffb 100644
--- a/public/string-functions
+++ b/public/string-functions
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'recover';
diff --git a/public/strings-and-runes b/public/strings-and-runes
index 84126885b..66bdae989 100644
--- a/public/strings-and-runes
+++ b/public/strings-and-runes
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'pointers';
diff --git a/public/struct-embedding b/public/struct-embedding
index 40b5fe9dc..48ef7f854 100644
--- a/public/struct-embedding
+++ b/public/struct-embedding
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'interfaces';
diff --git a/public/structs b/public/structs
index 15a573ae9..4d8207331 100644
--- a/public/structs
+++ b/public/structs
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'strings-and-runes';
diff --git a/public/switch b/public/switch
index 947a66fed..8f8fff380 100644
--- a/public/switch
+++ b/public/switch
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'if-else';
diff --git a/public/temporary-files-and-directories b/public/temporary-files-and-directories
index bcb035452..2b5e0f4b8 100644
--- a/public/temporary-files-and-directories
+++ b/public/temporary-files-and-directories
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'directories';
diff --git a/public/testing-and-benchmarking b/public/testing-and-benchmarking
index edefa47c6..6fc29b753 100644
--- a/public/testing-and-benchmarking
+++ b/public/testing-and-benchmarking
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'embed-directive';
diff --git a/public/text-templates b/public/text-templates
index 43b39dab3..8e6251d78 100644
--- a/public/text-templates
+++ b/public/text-templates
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'string-formatting';
diff --git a/public/tickers b/public/tickers
index f3702252b..35831d982 100644
--- a/public/tickers
+++ b/public/tickers
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'timers';
diff --git a/public/time b/public/time
index 7b46e75dd..3c423cde3 100644
--- a/public/time
+++ b/public/time
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'xml';
diff --git a/public/time-formatting-parsing b/public/time-formatting-parsing
index a82af482c..d127e7fda 100644
--- a/public/time-formatting-parsing
+++ b/public/time-formatting-parsing
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'epoch';
diff --git a/public/timeouts b/public/timeouts
index 39e2ffd46..03322764e 100644
--- a/public/timeouts
+++ b/public/timeouts
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'select';
diff --git a/public/timers b/public/timers
index 107d9150a..e88e82ce0 100644
--- a/public/timers
+++ b/public/timers
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'range-over-channels';
diff --git a/public/url-parsing b/public/url-parsing
index 4b6bc03ae..0adb6be87 100644
--- a/public/url-parsing
+++ b/public/url-parsing
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'number-parsing';
diff --git a/public/values b/public/values
index 6aece1bfe..858f035a6 100644
--- a/public/values
+++ b/public/values
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'hello-world';
diff --git a/public/variables b/public/variables
index 5c07db665..ca2f86bd9 100644
--- a/public/variables
+++ b/public/variables
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'values';
diff --git a/public/variadic-functions b/public/variadic-functions
index a07a44b78..f0ef80ed3 100644
--- a/public/variadic-functions
+++ b/public/variadic-functions
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'multiple-return-values';
diff --git a/public/waitgroups b/public/waitgroups
index 6e9fdf477..1c0b5be81 100644
--- a/public/waitgroups
+++ b/public/waitgroups
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'worker-pools';
diff --git a/public/worker-pools b/public/worker-pools
index 2a024a786..0f0f59641 100644
--- a/public/worker-pools
+++ b/public/worker-pools
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'tickers';
diff --git a/public/writing-files b/public/writing-files
index 75ef52246..19270e2ab 100644
--- a/public/writing-files
+++ b/public/writing-files
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'reading-files';
diff --git a/public/xml b/public/xml
index 5ea737ac7..0e8d3883e 100644
--- a/public/xml
+++ b/public/xml
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'json';
diff --git a/templates/example.tmpl b/templates/example.tmpl
index 29b185c30..9ae3f7a40 100644
--- a/templates/example.tmpl
+++ b/templates/example.tmpl
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           {{if .PrevExample}}
           if (e.key == "ArrowLeft") {
               window.location.href = '{{.PrevExample.ID}}';