I noticed a lot of recurring issues about the checkbox in the lower left corner not showing up. It seems that some themes, some modules and/or javascript aggregation is the cause. I created this issue to combine all related issues in the hope of finally fixing this long standing bug.

related issues:
#1216862: Theme developer icon not showing up in Acquia screens
#1081758: Omega theme, devel_themer and a friday evening before holiday!
#1171982: Theme developer doesn’t work in the enabled theme, but does work in administration theme
#1169210: theme developer does not work if aggragated js
#1124128: No checkbox to turn on "Theme Developer" in Drupal 7?
#1030518: Fix if theme devel won't work with js aggregation

Comments

kenneth.venken’s picture

It seems that #1247280: Fixing html breakage once and for all fixes a lot (if not all) of these issues. Could someone confirm?

kenneth.venken’s picture

Status: Active » Closed (won't fix)

It seems that this issue is mostly caused by javascript errors in other modules or custom code.
I'm closing this issue since these issues don't share a same root cause.