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-rw-r--r--ext/bg/js/api.js7
1 files changed, 4 insertions, 3 deletions
diff --git a/ext/bg/js/api.js b/ext/bg/js/api.js
index 064903ca..174a439e 100644
--- a/ext/bg/js/api.js
+++ b/ext/bg/js/api.js
@@ -90,9 +90,10 @@ async function apiTextParse(text, optionsContext) {
definitions = dictTermsSort(definitions);
const {expression, source, reading} = definitions[0];
- let stemLength = source.length;
- while (source[stemLength - 1] !== expression[stemLength - 1]) {
- --stemLength;
+ let stemLength = 0;
+ const shortest = Math.min(source.length, expression.length);
+ while (stemLength < shortest && source[stemLength] === expression[stemLength]) {
+ ++stemLength;
}
const offset = source.length - stemLength;