Sometimes GM_setValue() does not work

[shopkeeperV]

lemur browser 2.7.0.035 (127.0.6533.144)
tampermonkey beta 5.3.6216
Android 14

Sometimes, after opening a page, switching to other tabs, or switching to other applications and then coming back, you may find that Tampermonkey reports errors on some pages, as shown in the figure. It will cause GM_setValue on the current page to fail. At this time, simply refreshing the page can restore everything to normal.

[derjanb]

This happens when the background context is closed. Usually the page context waits for the background to start again and then re-establishes the ports. This doesn't seem to work on Lemur Browser. So either it doesn't send port disconnect, or pagehide and pageshow events...