diff options
| -rw-r--r-- | docs/lab/index.html | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/docs/lab/index.html b/docs/lab/index.html index 6b95a6f05..a7468f8fc 100644 --- a/docs/lab/index.html +++ b/docs/lab/index.html @@ -1128,6 +1128,8 @@ class Vars { .map(s => s.split('=').map(decodeURIComponent)) ) this.vars = new Map() + this._historyReplaceStateTimer = null + this._needsHistoryReplaceState = false } getValue(name) { @@ -1153,7 +1155,29 @@ class Vars { } else { this.values.set(name, value) } + this._setNeedsHistoryReplaceState() + } + + _performHistoryReplaceState() { history.replaceState({} , '', '?' + this.getQueryString()) + this._needsHistoryReplaceState = false + } + + _setNeedsHistoryReplaceState() { + // We employ some backoff on calling history.replaceState as + // Chrome will start to throttle (meaning ignoring) calls to + // history.replaceState if the frequency gets too high. + if (this._historyReplaceStateTimer === null) { + this._performHistoryReplaceState() + this._historyReplaceStateTimer = setTimeout(() => { + this._historyReplaceStateTimer = null + if (this._needsHistoryReplaceState) { + this._performHistoryReplaceState() + } + }, 200) + } else { + this._needsHistoryReplaceState = true + } } refreshValue(name) { |