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ProcessWire's core comes with a lot of helpful debugging tools and capabilities built-in. In this post we'll cover some of these useful tools and how to use them— https://processwire.com/blog/posts/debugging-tools-built-in/

I looked at my HTML output today and all this chaotic whitespace triggered my OCD. This module simply hooks into Page::render and removes whitespaces from frontend HTML with a simple regex replace. I mostly put this together for cosmetics. I like my View source neat and tidy. This is not well tested yet, please open an issue if you run into problems. GitHub: https://github.com/timohausmann/MinifyPageRender

The newer versions of symfony/yaml require a pretty recent version of PHP - so you might need to use an older version of that library if you do go down that route. If you don't need Yaml support, then removing it might be better.

Ok, i now have an entirely new setup. It has the same problem. And i just thought about turning on debug. That might help. ? I avoid that option usually, because it showers me in a myriad of deprecation errors. First Error: SelectableOption: title may not contain the character '|' ------------------- Second Error: ProcessWire: ProcessModule: Too many keys: PDO::quote(): Passing null to parameter DEBUG MODE BACKTRACE ($config->debug == true): #0 /home/ferdl/PhpstormProjects/process/test-project/site/modules/RockMigrations/spyc/Spyc.php(1124): Spyc->checkKeysInValue() #1 /home/ferdl/PhpstormProjects/process/test-project/site/modules/RockMigrations/spyc/Spyc.php(609): Spyc->returnKeyValuePair() #2 /home/ferdl/PhpstormProjects/process/test-project/site/modules/RockMigrations/spyc/Spyc.php(545): Spyc->_parseLine() #3 /home/ferdl/PhpstormProjects/process/test-project/site/modules/RockMigrations/spyc/Spyc.php(494): Spyc->loadWithSource() #4 /home/ferdl/PhpstormProjects/process/test-project/site/modules/RockMigrations/spyc/Spyc.php(165): Spyc->_load() #5 /home/ferdl/PhpstormProjects/process/test-project/site/modules/RockMigrations/YAML.php(11): Spyc::YAMLLoad() #6 /home/ferdl/PhpstormProjects/process/test-project/site/modules/RockMigrations/RockMigrations.module.php(3025): RockMigrations\YAML->load() #7 /home/ferdl/PhpstormProjects/process/test-project/site/modules/RockMigrations/RockMigrations.module.php(1802): ProcessWire\RockMigrations->yaml() #8 /home/ferdl/PhpstormProjects/process/test-project/site/modules/RockMigrations/RockMigrations.module.php(1979): ProcessWire\RockMigrations->migrateWatchfiles() #9 /home/ferdl/PhpstormProjects/process/test-project/site/modules/RockMigrations/RockMigrations.module.php(2739): ProcessWire\RockMigrations->run() #10 /home/ferdl/PhpstormProjects/process/test-project/wire/core/WireHooks.php(1059): ProcessWire\RockMigrations->triggerMigrations() #11 /home/ferdl/PhpstormProjects/process/test-project/wire/core/Wire.php(485): ProcessWire\WireHooks->runHooks() #12 /home/ferdl/PhpstormProjects/process/test-project/wire/modules/Process/ProcessModule/ProcessModule.module(368): ProcessWire\Wire->__call() #13 /home/ferdl/PhpstormProjects/process/test-project/wire/core/Wire.php(414): ProcessWire\ProcessModule->___execute() #14 /home/ferdl/PhpstormProjects/process/test-project/wire/core/WireHooks.php(951): ProcessWire\Wire->_callMethod() #15 /home/ferdl/PhpstormProjects/process/test-project/wire/core/Wire.php(485): ProcessWire\WireHooks->runHooks() #16 /home/ferdl/PhpstormProjects/process/test-project/wire/core/ProcessController.php(337): ProcessWire\Wire->__call() #17 /home/ferdl/PhpstormProjects/process/test-project/wire/core/Wire.php(414): ProcessWire\ProcessController->___execute() #18 /home/ferdl/PhpstormProjects/process/test-project/wire/core/WireHooks.php(951): ProcessWire\Wire->_callMethod() #19 /home/ferdl/PhpstormProjects/process/test-project/wire/core/Wire.php(485): ProcessWire\WireHooks->runHooks() #20 /home/ferdl/PhpstormProjects/process/test-project/wire/core/admin.php(160): ProcessWire\Wire->__call() #21 /home/ferdl/PhpstormProjects/process/test-project/site/templates/admin.php(18): require('...') #22 /home/ferdl/PhpstormProjects/process/test-project/wire/core/TemplateFile.php(327): require('...') #23 /home/ferdl/PhpstormProjects/process/test-project/wire/core/Wire.php(414): ProcessWire\TemplateFile->___render() #24 /home/ferdl/PhpstormProjects/process/test-project/wire/core/WireHooks.php(951): ProcessWire\Wire->_callMethod() #25 /home/ferdl/PhpstormProjects/process/test-project/wire/core/Wire.php(485): ProcessWire\WireHooks->runHooks() #26 /home/ferdl/PhpstormProjects/process/test-project/wire/modules/PageRender.module(575): ProcessWire\Wire->__call() #27 /home/ferdl/PhpstormProjects/process/test-project/wire/core/Wire.php(417): ProcessWire\PageRender->___renderPage() #28 /home/ferdl/PhpstormProjects/process/test-project/wire/core/WireHooks.php(951): ProcessWire\Wire->_callMethod() #29 /home/ferdl/PhpstormProjects/process/test-project/wire/core/Wire.php(485): ProcessWire\WireHooks->runHooks() #30 /home/ferdl/PhpstormProjects/process/test-project/wire/core/WireHooks.php(1059): ProcessWire\Wire->__call() #31 /home/ferdl/PhpstormProjects/process/test-project/wire/core/Wire.php(485): ProcessWire\WireHooks->runHooks() #32 /home/ferdl/PhpstormProjects/process/test-project/wire/modules/Process/ProcessPageView.module(184): ProcessWire\Wire->__call() #33 /home/ferdl/PhpstormProjects/process/test-project/wire/modules/Process/ProcessPageView.module(114): ProcessWire\ProcessPageView->renderPage() #34 /home/ferdl/PhpstormProjects/process/test-project/wire/core/Wire.php(417): ProcessWire\ProcessPageView->___execute() #35 /home/ferdl/PhpstormProjects/process/test-project/wire/core/WireHooks.php(951): ProcessWire\Wire->_callMethod() #36 /home/ferdl/PhpstormProjects/process/test-project/wire/core/Wire.php(485): ProcessWire\WireHooks->runHooks() #37 /home/ferdl/PhpstormProjects/process/test-project/index.php(55): ProcessWire\Wire->__call() #38 {main} I may have to add that i'm on Manjaro Linux, which is using PHP 8.1.7 by default. Switching to PHP 7.4 appears to get rid of the PDO error. But the SelectableOptions error and the strange duplication behavior remains.