When an Error is returned with searchChemiDPlus, the connection remains open and closeAllConnections() does work

[meerapatelmd]

Warning messages:
1: In .Internal(gc(verbose, reset, full)) :
  closing unused connection 3 (https://chem.nlm.nih.gov/chemidplus/name/equals/RO4929097)
2: In .Internal(gc(verbose, reset, full)) :
  closing unused connection 3 (https://chem.nlm.nih.gov/chemidplus/name/equals/11C-choline)
3: In .Internal(gc(verbose, reset, full)) :
  closing unused connection 3 (https://chem.nlm.nih.gov/chemidplus/name/equals/AZD0156)
4: In .Internal(gc(verbose, reset, full)) :
  closing unused connection 3 (https://chem.nlm.nih.gov/chemidplus/name/equals/AzacitidineSubcutaneousInjectionorIntravenousInfusion)
5: In .Internal(gc(verbose, reset, full)) :
  closing unused connection 3 (https://chem.nlm.nih.gov/chemidplus/name/equals/89Zr-DFO-daratumumab)
6: In .Internal(gc(verbose, reset, full)) :
  closing unused connection 3 (https://chem.nlm.nih.gov/chemidplus/name/equals/pertuzumabincombinationwithtrastuzumabandpaclitaxel)
7: In .Internal(gc(verbose, reset, full)) :
  closing unused connection 3 (https://chem.nlm.nih.gov/chemidplus/name/equals/BAY1895344)
8: In .Internal(gc(verbose, reset, full)) :
  closing unused connection 3 (https://chem.nlm.nih.gov/chemidplus/name/equals/2-(5-fluoro-pentyl)-2-methyl-malonic-acid([18F]-ML-10))
9: In .Internal(gc(verbose, reset, full)) :
  closing unused connection 3 (https://chem.nlm.nih.gov/chemidplus/name/equals/Atezolizumab(MPDL3280A),anEngineeredAnti-PD-L1Antibody)
10: In .Internal(gc(verbose, reset, full)) :
  closing unused connection 3 (https://chem.nlm.nih.gov/chemidplus/name/equals/Temozolomide(TMZ))