fix：修复host签名时不兼容全球加速域名

Author: livehigh

dist/cos-js-sdk-v5.js

@@ -8050,16 +8050,12 @@ function getUrl(params) {
 
 var getSignHost = function (opt) {
     if (!opt.Bucket || !opt.Region) return '';
-    var region = opt.Region;
-    if (this.options.UseAccelerate) {
-        region = 'accelerate';
-    }
     var url = opt.Url || getUrl({
         ForcePathStyle: this.options.ForcePathStyle,
         protocol: this.options.Protocol,
         domain: this.options.Domain,
         bucket: opt.Bucket,
-        region: region
+        region: this.options.UseAccelerate ? 'accelerate' : opt.Region
     });
     var urlHost = url.replace(/^https?:\/\/([^/]+)(\/.*)?$/, '$1');
     var standardHostReg = new RegExp('^([a-z\\d-]+-\\d+\\.)?(cos|cosv6|ci|pic)\\.([a-z\\d-]+)\\.myqcloud\\.com$');

dist/cos-js-sdk-v5.min.js

@@ -3184,16 +3184,12 @@ function getUrl(params) {
 
 var getSignHost = function (opt) {
     if (!opt.Bucket || !opt.Region) return '';
-    var region = opt.Region;
-    if (this.options.UseAccelerate) {
-      region = 'accelerate';
-    }
     var url = opt.Url || getUrl({
         ForcePathStyle: this.options.ForcePathStyle,
         protocol: this.options.Protocol,
         domain: this.options.Domain,
         bucket: opt.Bucket,
-        region: region,
+        region: this.options.UseAccelerate ? 'accelerate' : opt.Region,
     });
     var urlHost = url.replace(/^https?:\/\/([^/]+)(\/.*)?$/, '$1');
     var standardHostReg = new RegExp('^([a-z\\d-]+-\\d+\\.)?(cos|cosv6|ci|pic)\\.([a-z\\d-]+)\\.myqcloud\\.com$');