## Markus' Fetch Issue Markus noticed some serius lag when using Lively4, that occurred randomly but often, e.g. when sending a PUT request. Here is the log of a delay that took nearly 2 minutes: ``` boot.js:35 [boot] 629 2021-06-28T12:02:13.798Z 0.00ms fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js // ... things happened boot.js:35 [boot] 629 2021-06-28T12:04:10.212Z 116415.00ms finished fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js ``` ### Full Log ``` boot.js:35 [boot] 629 2021-06-28T12:02:13.798Z 0.00ms fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js // ??? Service Worker gets (re-)started? Maybe this is the problem service-worker.js:20 [swx] 0 2021-06-28T12:02:13.828Z NaNms NEW SERVICE Worker ServiceWorkerGlobalScope service-worker.js:20 [swx] 0 2021-06-28T12:02:13.829Z 0.30ms fetch GET https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js // so... it passes it on to the server service-worker.js:20 [swx] 0 2021-06-28T12:02:13.829Z 0.40ms SWX let it go through: https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js // ??? and the client fetches it again? boot.js:35 [boot] 630 2021-06-28T12:02:20.679Z 0.00ms fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js service-worker.js:20 [swx] 1 2021-06-28T12:02:20.682Z 0.00ms fetch GET https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js service-worker.js:20 [swx] 1 2021-06-28T12:02:20.682Z 0.30ms SWX let it go through: https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js service-worker.js:20 [swx] 2 2021-06-28T12:02:24.503Z 0.00ms fetch GET https://lively-kernel.org/lively4/lively4-markus/start.html?load=https://lively-kernel.org/lively4/lively4-markus/README.md service-worker.js:20 [swx] 2 2021-06-28T12:02:24.509Z 6.80ms SWX fallback... fetch again: https://lively-kernel.org/lively4/lively4-markus/start.html?load=https://lively-kernel.org/lively4/lively4-markus/README.md service-worker.js:20 [swx] 3 2021-06-28T12:02:24.512Z 0.10ms fetch GET https://lively-kernel.org/lively4/lively4-markus/templates/lively4.css service-worker.js:20 [swx] 4 2021-06-28T12:02:24.513Z 0.10ms fetch GET https://lively-kernel.org/lively4/lively4-markus/src/external/font-awesome/css/font-awesome.min.css service-worker.js:20 [swx] 5 2021-06-28T12:02:24.513Z 0.10ms fetch GET https://lively-kernel.org/lively4/lively4-markus/src/client/lively.css service-worker.js:20 [swx] 6 2021-06-28T12:02:24.514Z 0.00ms fetch GET https://lively-kernel.org/lively4/lively4-markus/src/external/code-mirror/addon/hint/show-hint.css service-worker.js:20 [swx] 7 2021-06-28T12:02:24.514Z 0.00ms fetch GET https://lively-kernel.org/lively4/lively4-markus/src/external/code-mirror/addon/lint/lint.css service-worker.js:20 [swx] 8 2021-06-28T12:02:24.514Z 0.00ms fetch GET https://lively-kernel.org/lively4/lively4-markus/src/components/widgets/lively-code-mirror.css service-worker.js:20 [swx] 3 2021-06-28T12:02:24.519Z 6.90ms SWX fallback... fetch again: https://lively-kernel.org/lively4/lively4-markus/templates/lively4.css service-worker.js:20 [swx] 4 2021-06-28T12:02:24.522Z 9.00ms SWX fallback... fetch again: https://lively-kernel.org/lively4/lively4-markus/src/external/font-awesome/css/font-awesome.min.css service-worker.js:20 [swx] 5 2021-06-28T12:02:24.522Z 9.20ms SWX fallback... fetch again: https://lively-kernel.org/lively4/lively4-markus/src/client/lively.css service-worker.js:20 [swx] 6 2021-06-28T12:02:24.523Z 9.40ms SWX fallback... fetch again: https://lively-kernel.org/lively4/lively4-markus/src/external/code-mirror/addon/hint/show-hint.css service-worker.js:20 [swx] 7 2021-06-28T12:02:24.523Z 9.60ms SWX fallback... fetch again: https://lively-kernel.org/lively4/lively4-markus/src/external/code-mirror/addon/lint/lint.css service-worker.js:20 [swx] 8 2021-06-28T12:02:24.524Z 9.90ms SWX fallback... fetch again: https://lively-kernel.org/lively4/lively4-markus/src/components/widgets/lively-code-mirror.css 9143 log entries are not shown. Fehler beim Laden der Quell Zuordnung durch devtools: Der Inhalt für https://lively-kernel.org/lively4/lively4-markus/src/external/dexie.js.map konnte nicht geladen werden: HTTP Fehler: Statuscode 404,net::ERR_HTTP_RESPONSE_CODE_FAILURE Fehler beim Laden der Quell Zuordnung durch devtools: Der Inhalt für https://lively-kernel.org/lively4/lively4-markus/src/external/d3-graphviz.js.map konnte nicht geladen werden: HTTP Fehler: Statuscode 404,net::ERR_HTTP_RESPONSE_CODE_FAILURE boot.js:35 [boot] 630 2021-06-28T12:02:40.841Z 20162.20ms finished fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js boot.js:35 [boot] 631 2021-06-28T12:02:40.844Z 0.00ms fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js fetch.js:249 AuthorizedFetch Write: https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js fetch.js:212 Ensure Github Credentials: https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js service-worker.js:20 [swx] 9 2021-06-28T12:02:40.849Z 0.00ms fetch PUT https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js service-worker.js:20 [swx] 9 2021-06-28T12:02:40.849Z 0.50ms SWX let it go through: https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js fileindex.js:768 [fileindex] updateFile https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js boot.js:35 [boot] 631 2021-06-28T12:03:01.878Z 21033.70ms finished fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js service-worker.js:20 [swx] 10 2021-06-28T12:03:01.879Z 0.00ms fetch OPTIONS https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js service-worker.js:20 [swx] 10 2021-06-28T12:03:01.880Z 0.90ms SWX let it go through: https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js lively.js:504 Lively Notification {title: "saved file", text: URL} lively-editor.js:319 updateEditors updateOtherEditors @ lively-editor.js:319 saveFile @ lively-editor.js:668 async function (async) saveFile @ lively-editor.js:648 boot.js:35 [boot] 632 2021-06-28T12:03:01.892Z 0.00ms fetch https://lively-kernel.org/lively4/lively4-markus/src/components/halo/ service-worker.js:20 [swx] 11 2021-06-28T12:03:01.895Z 0.00ms fetch OPTIONS https://lively-kernel.org/lively4/lively4-markus/src/components/halo/ service-worker.js:20 [swx] 11 2021-06-28T12:03:01.896Z 0.30ms SWX let it go through: https://lively-kernel.org/lively4/lively4-markus/src/components/halo/ fileindex.js:791 [fileindex] addFile https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js service-worker.js:20 [swx] 12 2021-06-28T12:03:01.940Z 0.10ms fetch GET https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js service-worker.js:20 [swx] 12 2021-06-28T12:03:01.941Z 0.70ms SWX fallback... fetch again: https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js boot.js:35 [boot] 632 2021-06-28T12:03:01.972Z 79.50ms finished fetch https://lively-kernel.org/lively4/lively4-markus/src/components/halo/ boot.js:35 [boot] 633 2021-06-28T12:03:01.973Z 0.00ms fetch https://lively-kernel.org/lively4/lively4-markus/src/components/demo/ service-worker.js:20 [swx] 13 2021-06-28T12:03:01.974Z 0.00ms fetch OPTIONS https://lively-kernel.org/lively4/lively4-markus/src/components/demo/ service-worker.js:20 [swx] 13 2021-06-28T12:03:01.974Z 0.20ms SWX let it go through: https://lively-kernel.org/lively4/lively4-markus/src/components/demo/ boot.js:35 [boot] 633 2021-06-28T12:03:02.010Z 37.70ms finished fetch https://lively-kernel.org/lively4/lively4-markus/src/components/demo/ boot.js:35 [boot] 634 2021-06-28T12:03:02.011Z 0.00ms fetch https://lively-kernel.org/lively4/lively4-markus/src/components/draft/ service-worker.js:20 [swx] 14 2021-06-28T12:03:02.012Z 0.00ms fetch OPTIONS https://lively-kernel.org/lively4/lively4-markus/src/components/draft/ service-worker.js:20 [swx] 14 2021-06-28T12:03:02.012Z 0.30ms SWX let it go through: https://lively-kernel.org/lively4/lively4-markus/src/components/draft/ boot.js:35 [boot] 634 2021-06-28T12:03:02.047Z 36.20ms finished fetch https://lively-kernel.org/lively4/lively4-markus/src/components/draft/ boot.js:35 [boot] 635 2021-06-28T12:03:02.048Z 0.10ms fetch https://lively-kernel.org/lively4/lively4-markus/src/components/d3/ service-worker.js:20 [swx] 15 2021-06-28T12:03:02.049Z 0.00ms fetch OPTIONS https://lively-kernel.org/lively4/lively4-markus/src/components/d3/ service-worker.js:20 [swx] 15 2021-06-28T12:03:02.049Z 0.00ms SWX let it go through: https://lively-kernel.org/lively4/lively4-markus/src/components/d3/ boot.js:35 [boot] 635 2021-06-28T12:03:02.089Z 41.00ms finished fetch https://lively-kernel.org/lively4/lively4-markus/src/components/d3/ boot.js:35 [boot] 636 2021-06-28T12:03:02.090Z 0.00ms fetch https://lively-kernel.org/lively4/lively4-markus/src/client/vivide/components/ service-worker.js:20 [swx] 16 2021-06-28T12:03:02.091Z 0.00ms fetch OPTIONS https://lively-kernel.org/lively4/lively4-markus/src/client/vivide/components/ service-worker.js:20 [swx] 16 2021-06-28T12:03:02.091Z 0.10ms SWX let it go through: https://lively-kernel.org/lively4/lively4-markus/src/client/vivide/components/ boot.js:35 [boot] 636 2021-06-28T12:03:02.126Z 36.60ms finished fetch https://lively-kernel.org/lively4/lively4-markus/src/client/vivide/components/ boot.js:35 [boot] 637 2021-06-28T12:03:02.127Z 0.00ms fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/rewritten/ service-worker.js:20 [swx] 17 2021-06-28T12:03:02.128Z 0.10ms fetch OPTIONS https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/rewritten/ service-worker.js:20 [swx] 17 2021-06-28T12:03:02.128Z 0.20ms SWX let it go through: https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/rewritten/ boot.js:35 [boot] 637 2021-06-28T12:03:02.173Z 46.30ms finished fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/rewritten/ boot.js:35 [boot] 638 2021-06-28T12:03:02.173Z 0.00ms fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/ service-worker.js:20 [swx] 18 2021-06-28T12:03:02.175Z 0.10ms fetch OPTIONS https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/ service-worker.js:20 [swx] 18 2021-06-28T12:03:02.175Z 0.30ms SWX let it go through: https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/ boot.js:35 [boot] 638 2021-06-28T12:03:02.212Z 38.70ms finished fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/ boot.js:35 [boot] 639 2021-06-28T12:03:02.213Z 0.00ms fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/ service-worker.js:20 [swx] 19 2021-06-28T12:03:02.214Z 0.00ms fetch OPTIONS https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/ service-worker.js:20 [swx] 19 2021-06-28T12:03:02.214Z 0.20ms SWX let it go through: https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/ boot.js:35 [boot] 639 2021-06-28T12:03:02.250Z 37.30ms finished fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/ ?? lively.js:504 Lively Notification {title: "update template", text: undefined} lively-container.js:2512 updateOtherContainers updateOtherContainers @ lively-container.js:2512 onSave @ lively-container.js:1644 async function (async) onSave @ lively-container.js:1624 boot.js:35 [boot] 640 2021-06-28T12:03:02.258Z 0.00ms fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js service-worker.js:20 [swx] 20 2021-06-28T12:03:02.260Z 0.00ms fetch GET https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js service-worker.js:20 [swx] 20 2021-06-28T12:03:02.260Z 0.10ms SWX let it go through: https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js boot.js:35 [boot] 640 2021-06-28T12:03:22.398Z 20139.60ms finished fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js boot.js:83 [babel] update transpilation cache https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js boot.js:90 [lively4transpilationCache] ignore src_client_reactive_components_basic_aexpr-graph_identifier-node.js boot.js:35 [boot] 641 2021-06-28T12:03:22.498Z 0.00ms fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/aexpr-graph.js service-worker.js:20 [swx] 21 2021-06-28T12:03:22.500Z 0.10ms fetch GET https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/aexpr-graph.js service-worker.js:20 [swx] 21 2021-06-28T12:03:22.500Z 0.30ms SWX let it go through: https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/aexpr-graph.js boot.js:35 [boot] 641 2021-06-28T12:03:22.555Z 56.50ms finished fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/aexpr-graph.js lively.js:694 update template prototype: //lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js lively.js:700 [templates] update template https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.html lively.js:694 update template prototype: //lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/aexpr-graph.js lively.js:700 [templates] update template https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/aexpr-graph.html lively.js:504 Lively Notification {title: "", text: "Module https://lively-kernel.org/lively4/lively4-m…ts/basic/aexpr-graph/identifier-node.js reloaded!"} lively-container.js:1659 START DEP TEST RUN lively-container.js:1665 END DEP TEST RUN fileindex.js:816 [fileindex] load versions for https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js fileindex.js:866 [fileindex] addFile https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js FINISHED (20751ms) boot.js:35 [boot] 642 2021-06-28T12:03:22.691Z 0.00ms fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.html service-worker.js:20 [swx] 22 2021-06-28T12:03:22.692Z 0.00ms fetch GET https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.html boot.js:35 [boot] 643 2021-06-28T12:03:22.692Z 0.00ms fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/aexpr-graph.html service-worker.js:20 [swx] 22 2021-06-28T12:03:22.692Z 0.20ms SWX let it go through: https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.html systemjs-worker.js:35 new onmessage service-worker.js:20 [swx] 23 2021-06-28T12:03:22.694Z 0.10ms fetch GET https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/aexpr-graph.html service-worker.js:20 [swx] 23 2021-06-28T12:03:22.695Z 0.20ms SWX let it go through: https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/aexpr-graph.html boot.js:256 GET https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.html 404 (Not Found) result @ boot.js:256 self.fetch @ boot.js:238 loadFileResponse @ files.js:145 loadFile @ files.js:153 eval @ lively.js:702 setTimeout (async) reloadModule @ lively.js:701 async function (async) reloadModule @ lively.js:616 loadModule @ lively-container.js:1059 onSave @ lively-container.js:1658 async function (async) onSave @ lively-container.js:1624 boot.js:35 [boot] 642 2021-06-28T12:03:22.738Z 47.70ms finished fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.html files.js:154 file https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.html read. boot.js:35 [boot] 643 2021-06-28T12:03:22.820Z 128.40ms finished fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/aexpr-graph.html files.js:154 file https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/aexpr-graph.html read. boot.js:35 [boot] 644 2021-06-28T12:03:22.822Z 0.00ms fetch cached:https://lively-kernel.org/lively4/lively4-markus/src/external/font-awesome/css/font-awesome.css boot.js:35 [boot] 645 2021-06-28T12:03:22.823Z 0.00ms fetch cached:https://lively-kernel.org/lively4/lively4-markus/templates/livelystyle.css boot.js:35 [boot] 646 2021-06-28T12:03:22.824Z 0.00ms fetch cached:https://lively-kernel.org/lively4/lively4-markus/src/external/jstree/themes/default/style.css boot.js:35 [boot] 644 2021-06-28T12:03:22.825Z 3.00ms finished fetch cached:https://lively-kernel.org/lively4/lively4-markus/src/external/font-awesome/css/font-awesome.css boot.js:35 [boot] 645 2021-06-28T12:03:22.826Z 2.50ms finished fetch cached:https://lively-kernel.org/lively4/lively4-markus/templates/livelystyle.css boot.js:35 [boot] 646 2021-06-28T12:03:22.826Z 2.30ms finished fetch cached:https://lively-kernel.org/lively4/lively4-markus/src/external/jstree/themes/default/style.css // and here is a 30second pause boot.js:35 [boot] 629 2021-06-28T12:04:10.212Z 116415.00ms finished fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js boot.js:35 [boot] 647 2021-06-28T12:04:10.214Z 0.00ms fetch https://lively-kernel.org/lively4/lively4-markus/src/client/reactive/components/basic/aexpr-graph/identifier-node.js ```