This file1.12MB and has been trying to sync for several minutes. During this time the viewer/editor is basically useless, it allows scrolling after around 20-30 seconds of lag.
UPDATE
So, it has now been around a half an hour or so that the dot has been flashing and the editor has been unresponsive for the above file. Here are a couple of observations. I close the other tabs with .pdfs open, it had no effect. However, when the viewer/editor is lagging (i.e. I scrolled or highlighted and am waiting for several seconds) it seems that if I move the mouse over a different tab the editor becomes responsive again. Let me explain using three examples:
- I try to select the file menu but nothing happens, I move my mouse to hover over the address bar or another tab, and the menu appears
- I try to scroll the .pdf page but nothing happens, I then move my mouse as stated in the previous bullet and the page scrolls
- I try to select text to highlight but nothing happens, move the mouse and text is selected
- Press
h to highlight the selected text but nothing happens until the mouse is moved as stated above
Hopefully this helps in troubleshooting. This is pretty disruptive to my work.
UPDATE 2
I just opened the developer tools and everything just fixed itself… not sure why. The dot stopped flashing and the editor became responsive.
Also, the chrome tab that had meta-pdf open was using 30% CPU for that ~ half an hour period that I mentioned above.
UPDATE 3
Maybe the developer tools thing was a fluke? I just had the problem again (laggy viewer, 30% CPU, for a couple minutes) while the developer tools window was open. Here is the .log (I pressed ctrl-s a couple times out of frustration 
). It got stuck on the first GDRIVE Get file meta-data (success) line and that is when I hit ctrl-s again. After waiting a bit longer it went through and had GDRIVE Upload file (success)
pp-metapdf.js:30041 NO user info -- NOT logging!
chrome-extension://bomfdkbfpdhijjbeoicnfhjbdhncfhig/undefined Failed to load resource: net::ERR_FILE_NOT_FOUND
pp-metapdf.js:51921 STARTUP Resetting annotation collections for new file with id: 91dd216b-e2b0-0d11-9b66-59a781c9aa95
pp-metapdf.js:51921 SYNC SharedSession sync_status:undefined
pp-metapdf.js:51921 SYNC SharedSession sync_status:SYNCED
pp-metapdf.js:51921 SYNC Setting MP.file autoSync:false without user notification
pdf.worker.js?v=__MP_APP_VERSION__:1205 The provided value 'moz-chunked-arraybuffer' is not a valid enum value of type XMLHttpRequestResponseType.
(anonymous) @ pdf.worker.js?v=__MP_APP_VERSION__:1205
pp-metapdf.js:51921 FIREBASE Firebase authentication succeeded
pp-metapdf.js:51921 FIREBASE CONNECTED TO FIREBASE
pp-metapdf.js:51921 FIREBASE Registering a new user with sessionID: 16e836cb-83e7-0f0b-bc83-02b1896cf725
pp-metapdf.js:51921 FIREBASE Added collaborator: brett.israelsen@gmail.com (16e836cb-83e7-0f0b-bc83-02b1896cf725)
chrome-extension://bomfdkbfpdhijjbeoicnfhjbdhncfhig/metapdf/pdf.worker.js?v=__MP_APP_VERSION__:1205 The provided value 'moz-chunked-arraybuffer' is not a valid enum value of type XMLHttpRequestResponseType.
(anonymous) @ chrome-extension://bomfdkbfpdhijjbeoicnfhjbdhncfhig/metapdf/pdf.worker.js?v=__MP_APP_VERSION__:1205
pp-metapdf.js:51921 STARTUP PDF metadata: c89c837af18dfd40b4b46334f8e77b11 [1.2 Acrobat 3.0 Import Plug-in / Acrobat 3.0 Capture Plug-in] (PDF.js: 1.4.323)
pp-metapdf.js:51921 HISTORY Model added by this user:e543829d-713a-00f4-a228-0380d0935bd1
pp-metapdf.js:12697 Heard one-off message 545 Object {id: "bomfdkbfpdhijjbeoicnfhjbdhncfhig"}
pp-metapdf.js:12697 Heard one-off message 545 Object {id: "bomfdkbfpdhijjbeoicnfhjbdhncfhig"}
pp-metapdf.js:51921 SYNC Starting sync.
pp-metapdf.js:51921 SYNC Attempting both cloud and local sync.
pp-metapdf.js:51921 GDRIVE Get file meta-data (success).
pp-metapdf.js:51921 SYNC Starting sync.
pp-metapdf.js:51921 SYNC Attempting both cloud and local sync.
pp-metapdf.js:51921 GDRIVE Get file meta-data (success).
pp-metapdf.js:12697 Heard one-off message 545 Object {id: "bomfdkbfpdhijjbeoicnfhjbdhncfhig"}
pp-metapdf.js:51921 GDRIVE Upload file (success).
pp-metapdf.js:14352 Truncating file is finished, calling actual write
pp-metapdf.js:14355 Actual writing finished
pp-metapdf.js:51921 SYNC Sync done.
pp-metapdf.js:12697 Heard one-off message 545 Object {id: "bomfdkbfpdhijjbeoicnfhjbdhncfhig"}
UPDATE 4
Again this morning viewer is hanging. Moving the mouse off the page seems to help. For example, I searched for a term in the .pdf the “processing” circle animation stayed on for 10 seconds or so, when I moved the mouse up to hover over the address bar or tabs the search then completes. See a recording here
). It got stuck on the first