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-rw-r--r--src/tools/error_index_generator/redirect.js16
1 files changed, 16 insertions, 0 deletions
diff --git a/src/tools/error_index_generator/redirect.js b/src/tools/error_index_generator/redirect.js
new file mode 100644
index 000000000..8c907f579
--- /dev/null
+++ b/src/tools/error_index_generator/redirect.js
@@ -0,0 +1,16 @@
+(function() {
+ if (window.location.hash) {
+ let code = window.location.hash.replace(/^#/, '');
+ // We have to make sure this pattern matches to avoid inadvertently creating an
+ // open redirect.
+ if (!/^E[0-9]+$/.test(code)) {
+ return;
+ }
+ if (window.location.pathname.indexOf("/error_codes/") !== -1) {
+ // We're not at the top level, so we don't prepend with "./error_codes/".
+ window.location = './' + code + '.html';
+ } else {
+ window.location = './error_codes/' + code + '.html';
+ }
+ }
+})()