# Web BT: GATT operation already in progress

**URL:** <https://community.particle.io/t/web-bt-gatt-operation-already-in-progress/53707>\
**Category:** BLE // NFC\
**Tags:** boron, argon, xenon\
**Created:** [December 11, 2019, 4:19pm UTC](https://community.particle.io/t/web-bt-gatt-operation-already-in-progress/53707 "2019-12-11T16:19:05Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![cbrake](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/cbrake/32/22538_2.png) [@cbrake](https://community.particle.io/u/cbrake)\
**Post date:** [December 11, 2019, 4:19pm UTC](https://community.particle.io/t/web-bt-gatt-operation-already-in-progress/53707/1 "2019-12-11T16:19:05Z")

</div>

Hi, I’m trying to use web bluetooth to configure a particle device:

> <https://github.com/simpleiot/simpleiot/blob/master/frontend/public/ble.js>

However, I’m occasionally getting this message in the browser:

configure GW configure Timer error: DOMException: GATT operation already in progress.

This thread has some information on it as well:

> <https://github.com/WebBluetoothCG/web-bluetooth/issues/188>

Has anyone else dealt with this of know of an example of how to handle it?