Bad request 400 after new update

[kartik-v]

Getting this for ajax/post submissions after updating to latest dev version. As discussed in #4497 - not sure if the problem is related. Problem resolves on reverting back to previous version of the yii2 repo.

[qiangxue]

Which version works?

[kartik-v]

I have not tracked the versions before composer update. This is the change log status of the yii2 version which does not apparently have the problem:

Yii Framework 2 Change Log

2.0.1 under development

• Bug Error while storing schema in apc cache #4471: yii\caching\ApcCache::getValues() now returns array in case of APC is installed but not enabled in CLI mode (samdark, cebe)
• Bug Debug toolbar doesn't load #5402: Debugger was not loading when there were closures in asset classes (samdark)
• Bug Bootstrap/Tabs: error when content is not set #5570: yii\bootstrap\Tabs would throw an exception if content is not set for one of its items (RomeroMsk)
• Bug [Bug] yii\rbac\DbManager #5584: yii\rbac\DbRbacManager should not delete items when deleting a rule on a database not supporting cascade update (mdmunir)
• Bug Problem with yii\db\Expression and mysql date functions #5601: Simple conditions in Query::where() and ActiveQuery::where() did not allow yii\db\Expression to be used as the value (cebe, stevekr)
• Bug FIX framework/caching/ApcCache.php setValues() & addValues() #5657: yii\caching\ApcCache::mset() and madd() may cause warning in some APC setup (LAV45)
• Bug not to work correctly paginator in rest #5665: The currentPage meta data in the RESTful result should be 1-based, similar to that in HTTP headers (qiangxue)
• Bug Incorrect 'src' property when using symbolic links for asset bundle #5682: The asset command would incorrectly combine CSS files when UrlManager::linkAssets is true (dmvslv)
• Bug Bug: typo client validation #5702: Parenthesis should be automatically added to Validator::whenClient to avoid js error (mdmunir, qiangxue)
• Bug Problem with enableStrictParsing and debug/default/download-mail action #5745: Gii and debug modules may cause 404 exception when the route contains dashes (qiangxue)
• Bug: Gii console command help information does not contain global options (qiangxue)
• Bug: yii\web\UrlRule was unable to create URLs for rules containing unicode characters (samdark)
• Enh Subqueries in select section of query #5223: Query builder now supports selecting sub-queries as columns (qiangxue)
• Enh json_encode in Validators #5587: json_encode is now used with JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE where it makes sense, also
  it is now default for Json::encode() (samdark)
• Enh Add ability to register css in noscript #4457: Added support for using noscript for css files registered through asset bundles and Html helper (samdark)
• Enh debug panel config inconsistency #5600: Allow configuring debug panels in yii\debug\Module::panels as panel class name strings (qiangxue)
• Enh Gii console command does not overwrite files in non-interactive mode #5613: Added --overwrite option to Gii console command to support overwriting all files (motin, qiangxue)
• Enh Call ErrorHandler::unregister() instead of restore_*_handlers directly #5646: Call yii\base\ErrorHandler::unregister() instead of restore_*_handlers directly (aivus)
• Enh Fixes #5708 #5735: Added yii\bootstrap\Tabs::renderTabContent to support manually rendering tab contents (RomeroMsk)
• Enh: Console::confirm() now uses Console::stdout() instead of echo to be consistent with all other functions (cebe)
• Chg DB: Pre-check query for being potentionally slow ? #3630: yii\db\Command::queryInternal() is now protected (samdark)

[qiangxue]

Based on this changelog, the breaking change should be introduced on or after Oct 24. However, I reviewed every commit and couldn't find anything related.

[qiangxue]

Do you have code snippet to reproduce this issue?

[kartik-v]

Its just a simple javascript triggered ajax form submit for a form rendered via Html::beginForm.

However, I have some headway on this problem. I tried a new app install and it did not have the problem. So I have purged my vendor folder on my web host and did a new composer update and the problem is gone.

Reasons:

• could be some bad/incorrect composer update earlier
• OR something more recent which fixes this

Closing this.